Home / 1,131,185,642.58-1,561,011,707.07-654,896,094.21

Finding the Fourth Proportional to 1,131,185,642.58, 1,561,011,707.07 and 654,896,094.21

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Solution

The fourth proportional to 1,131,185,642.58, 1,561,011,707.07 and 654,896,094.21 is: 903,742,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,185,642.58 : 1,561,011,707.07 = 654,896,094.21 : x
  2. Step 2: Convert to fraction form
    1,131,185,642.58/1,561,011,707.07 = 654,896,094.21/x
  3. Step 3: Cross multiply
    1,131,185,642.58x = 1,561,011,707.07 × 654,896,094.21
  4. Step 4: Simplify right side
    1,131,185,642.58x = 1,022,300,469,976,227,712
  5. Step 5: Solve for x
    x = 1,022,300,469,976,227,712/1,131,185,642.58
  6. Step 6: Final answer
    x = 903,742,437.58

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Double scale
Find fourth proportional to 1,131,185,643.58, 1,561,011,708.45 and 654,896,095.21
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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.