Home / 398,123,167.62-549,645,646.60-353,948,151.71

Finding the Fourth Proportional to 398,123,167.62, 549,645,646.60 and 353,948,151.71

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Solution

The fourth proportional to 398,123,167.62, 549,645,646.60 and 353,948,151.71 is: 488,657,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,123,167.62 : 549,645,646.60 = 353,948,151.71 : x
  2. Step 2: Convert to fraction form
    398,123,167.62/549,645,646.60 = 353,948,151.71/x
  3. Step 3: Cross multiply
    398,123,167.62x = 549,645,646.60 × 353,948,151.71
  4. Step 4: Simplify right side
    398,123,167.62x = 194,546,060,709,586,688
  5. Step 5: Solve for x
    x = 194,546,060,709,586,688/398,123,167.62
  6. Step 6: Final answer
    x = 488,657,974.55

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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.