Home / 1,231,398,259.80-1,699,308,596.75-666,878,566.47

Finding the Fourth Proportional to 1,231,398,259.80, 1,699,308,596.75 and 666,878,566.47

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Solution

The fourth proportional to 1,231,398,259.80, 1,699,308,596.75 and 666,878,566.47 is: 920,281,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,398,259.80 : 1,699,308,596.75 = 666,878,566.47 : x
  2. Step 2: Convert to fraction form
    1,231,398,259.80/1,699,308,596.75 = 666,878,566.47/x
  3. Step 3: Cross multiply
    1,231,398,259.80x = 1,699,308,596.75 × 666,878,566.47
  4. Step 4: Simplify right side
    1,231,398,259.80x = 1,133,232,480,987,452,928
  5. Step 5: Solve for x
    x = 1,133,232,480,987,452,928/1,231,398,259.80
  6. Step 6: Final answer
    x = 920,281,047.96

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Double scale
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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.