Home / 78,732,163.30-118,098,244.95-49,821,772.90

Finding the Fourth Proportional to 78,732,163.30, 118,098,244.95 and 49,821,772.90

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Solution

The fourth proportional to 78,732,163.30, 118,098,244.95 and 49,821,772.90 is: 74,732,659.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,163.30 : 118,098,244.95 = 49,821,772.90 : x
  2. Step 2: Convert to fraction form
    78,732,163.30/118,098,244.95 = 49,821,772.90/x
  3. Step 3: Cross multiply
    78,732,163.30x = 118,098,244.95 × 49,821,772.90
  4. Step 4: Simplify right side
    78,732,163.30x = 5,883,863,939,787,472
  5. Step 5: Solve for x
    x = 5,883,863,939,787,472/78,732,163.30
  6. Step 6: Final answer
    x = 74,732,659.35

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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.