Home / 66,488,349.18-91,762,385.85-38,605,508.58

Finding the Fourth Proportional to 66,488,349.18, 91,762,385.85 and 38,605,508.58

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Solution

The fourth proportional to 66,488,349.18, 91,762,385.85 and 38,605,508.58 is: 53,280,516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,488,349.18 : 91,762,385.85 = 38,605,508.58 : x
  2. Step 2: Convert to fraction form
    66,488,349.18/91,762,385.85 = 38,605,508.58/x
  3. Step 3: Cross multiply
    66,488,349.18x = 91,762,385.85 × 38,605,508.58
  4. Step 4: Simplify right side
    66,488,349.18x = 3,542,533,574,253,445
  5. Step 5: Solve for x
    x = 3,542,533,574,253,445/66,488,349.18
  6. Step 6: Final answer
    x = 53,280,516.33

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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.