Home / 717,993,931.92-990,910,356.32-416,645,627.28

Finding the Fourth Proportional to 717,993,931.92, 990,910,356.32 and 416,645,627.28

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Solution

The fourth proportional to 717,993,931.92, 990,910,356.32 and 416,645,627.28 is: 575,016,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,993,931.92 : 990,910,356.32 = 416,645,627.28 : x
  2. Step 2: Convert to fraction form
    717,993,931.92/990,910,356.32 = 416,645,627.28/x
  3. Step 3: Cross multiply
    717,993,931.92x = 990,910,356.32 × 416,645,627.28
  4. Step 4: Simplify right side
    717,993,931.92x = 412,858,466,987,194,688
  5. Step 5: Solve for x
    x = 412,858,466,987,194,688/717,993,931.92
  6. Step 6: Final answer
    x = 575,016,652.14

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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.