Home / 78,890,447.30-108,866,728.89-44,083,423.76

Finding the Fourth Proportional to 78,890,447.30, 108,866,728.89 and 44,083,423.76

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Solution

The fourth proportional to 78,890,447.30, 108,866,728.89 and 44,083,423.76 is: 60,833,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,890,447.30 : 108,866,728.89 = 44,083,423.76 : x
  2. Step 2: Convert to fraction form
    78,890,447.30/108,866,728.89 = 44,083,423.76/x
  3. Step 3: Cross multiply
    78,890,447.30x = 108,866,728.89 × 44,083,423.76
  4. Step 4: Simplify right side
    78,890,447.30x = 4,799,218,142,478,571
  5. Step 5: Solve for x
    x = 4,799,218,142,478,571/78,890,447.30
  6. Step 6: Final answer
    x = 60,833,957.81

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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.