Home / 78,711,794.72-108,627,142.56-43,429,427

Finding the Fourth Proportional to 78,711,794.72, 108,627,142.56 and 43,429,427

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Solution

The fourth proportional to 78,711,794.72, 108,627,142.56 and 43,429,427 is: 59,935,294.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,711,794.72 : 108,627,142.56 = 43,429,427 : x
  2. Step 2: Convert to fraction form
    78,711,794.72/108,627,142.56 = 43,429,427/x
  3. Step 3: Cross multiply
    78,711,794.72x = 108,627,142.56 × 43,429,427
  4. Step 4: Simplify right side
    78,711,794.72x = 4,717,614,558,028,113
  5. Step 5: Solve for x
    x = 4,717,614,558,028,113/78,711,794.72
  6. Step 6: Final answer
    x = 59,935,294.00

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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.