Home / 1,187,338,089.74-1,637,845,807.01-740,525,733.14

Finding the Fourth Proportional to 1,187,338,089.74, 1,637,845,807.01 and 740,525,733.14

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Solution

The fourth proportional to 1,187,338,089.74, 1,637,845,807.01 and 740,525,733.14 is: 1,021,500,933.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,338,089.74 : 1,637,845,807.01 = 740,525,733.14 : x
  2. Step 2: Convert to fraction form
    1,187,338,089.74/1,637,845,807.01 = 740,525,733.14/x
  3. Step 3: Cross multiply
    1,187,338,089.74x = 1,637,845,807.01 × 740,525,733.14
  4. Step 4: Simplify right side
    1,187,338,089.74x = 1,212,866,966,994,463,488
  5. Step 5: Solve for x
    x = 1,212,866,966,994,463,488/1,187,338,089.74
  6. Step 6: Final answer
    x = 1,021,500,933.46

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Half scale
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Double scale
Find fourth proportional to 1,187,338,090.74, 1,637,845,808.38 and 740,525,734.14
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.