Home / 900,884,841.60-1,243,233,915.12-519,399,329.34

Finding the Fourth Proportional to 900,884,841.60, 1,243,233,915.12 and 519,399,329.34

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Solution

The fourth proportional to 900,884,841.60, 1,243,233,915.12 and 519,399,329.34 is: 716,778,473.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,884,841.60 : 1,243,233,915.12 = 519,399,329.34 : x
  2. Step 2: Convert to fraction form
    900,884,841.60/1,243,233,915.12 = 519,399,329.34/x
  3. Step 3: Cross multiply
    900,884,841.60x = 1,243,233,915.12 × 519,399,329.34
  4. Step 4: Simplify right side
    900,884,841.60x = 645,734,861,726,070,400
  5. Step 5: Solve for x
    x = 645,734,861,726,070,400/900,884,841.60
  6. Step 6: Final answer
    x = 716,778,473.68

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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.