Home / 78,307,541.28-108,064,350.72-43,503,487.20

Finding the Fourth Proportional to 78,307,541.28, 108,064,350.72 and 43,503,487.20

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Solution

The fourth proportional to 78,307,541.28, 108,064,350.72 and 43,503,487.20 is: 60,034,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,307,541.28 : 108,064,350.72 = 43,503,487.20 : x
  2. Step 2: Convert to fraction form
    78,307,541.28/108,064,350.72 = 43,503,487.20/x
  3. Step 3: Cross multiply
    78,307,541.28x = 108,064,350.72 × 43,503,487.20
  4. Step 4: Simplify right side
    78,307,541.28x = 4,701,176,098,323,831
  5. Step 5: Solve for x
    x = 4,701,176,098,323,831/78,307,541.28
  6. Step 6: Final answer
    x = 60,034,781.09

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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.