Home / 961,360,097.28-1,326,677,287.68-521,326,832.64

Finding the Fourth Proportional to 961,360,097.28, 1,326,677,287.68 and 521,326,832.64

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Solution

The fourth proportional to 961,360,097.28, 1,326,677,287.68 and 521,326,832.64 is: 719,431,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,360,097.28 : 1,326,677,287.68 = 521,326,832.64 : x
  2. Step 2: Convert to fraction form
    961,360,097.28/1,326,677,287.68 = 521,326,832.64/x
  3. Step 3: Cross multiply
    961,360,097.28x = 1,326,677,287.68 × 521,326,832.64
  4. Step 4: Simplify right side
    961,360,097.28x = 691,632,468,321,640,448
  5. Step 5: Solve for x
    x = 691,632,468,321,640,448/961,360,097.28
  6. Step 6: Final answer
    x = 719,431,220.70

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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.