Home / 78,878,469.60-108,857,920.77-43,595,516.52

Finding the Fourth Proportional to 78,878,469.60, 108,857,920.77 and 43,595,516.52

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Solution

The fourth proportional to 78,878,469.60, 108,857,920.77 and 43,595,516.52 is: 60,164,925.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,878,469.60 : 108,857,920.77 = 43,595,516.52 : x
  2. Step 2: Convert to fraction form
    78,878,469.60/108,857,920.77 = 43,595,516.52/x
  3. Step 3: Cross multiply
    78,878,469.60x = 108,857,920.77 × 43,595,516.52
  4. Step 4: Simplify right side
    78,878,469.60x = 4,745,717,283,261,386
  5. Step 5: Solve for x
    x = 4,745,717,283,261,386/78,878,469.60
  6. Step 6: Final answer
    x = 60,164,925.96

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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.