Home / 424,437,452.64-636,656,137.92-117,729,578.88

Finding the Fourth Proportional to 424,437,452.64, 636,656,137.92 and 117,729,578.88

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Solution

The fourth proportional to 424,437,452.64, 636,656,137.92 and 117,729,578.88 is: 176,594,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,437,452.64 : 636,656,137.92 = 117,729,578.88 : x
  2. Step 2: Convert to fraction form
    424,437,452.64/636,656,137.92 = 117,729,578.88/x
  3. Step 3: Cross multiply
    424,437,452.64x = 636,656,137.92 × 117,729,578.88
  4. Step 4: Simplify right side
    424,437,452.64x = 74,953,259,008,688,784
  5. Step 5: Solve for x
    x = 74,953,259,008,688,784/424,437,452.64
  6. Step 6: Final answer
    x = 176,594,356.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.