Home / 78,551,385.76-108,397,889.04-43,745,543.20

Finding the Fourth Proportional to 78,551,385.76, 108,397,889.04 and 43,745,543.20

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Solution

The fourth proportional to 78,551,385.76, 108,397,889.04 and 43,745,543.20 is: 60,367,165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,551,385.76 : 108,397,889.04 = 43,745,543.20 : x
  2. Step 2: Convert to fraction form
    78,551,385.76/108,397,889.04 = 43,745,543.20/x
  3. Step 3: Cross multiply
    78,551,385.76x = 108,397,889.04 × 43,745,543.20
  4. Step 4: Simplify right side
    78,551,385.76x = 4,741,924,537,788,127
  5. Step 5: Solve for x
    x = 4,741,924,537,788,127/78,551,385.76
  6. Step 6: Final answer
    x = 60,367,165.92

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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.