Home / 78,656,790.03-108,546,834.15-45,636,700.41

Finding the Fourth Proportional to 78,656,790.03, 108,546,834.15 and 45,636,700.41

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Solution

The fourth proportional to 78,656,790.03, 108,546,834.15 and 45,636,700.41 is: 62,978,915.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,656,790.03 : 108,546,834.15 = 45,636,700.41 : x
  2. Step 2: Convert to fraction form
    78,656,790.03/108,546,834.15 = 45,636,700.41/x
  3. Step 3: Cross multiply
    78,656,790.03x = 108,546,834.15 × 45,636,700.41
  4. Step 4: Simplify right side
    78,656,790.03x = 4,953,719,350,557,507
  5. Step 5: Solve for x
    x = 4,953,719,350,557,507/78,656,790.03
  6. Step 6: Final answer
    x = 62,978,915.73

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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.