Home / 108,468,780.80-149,696,149.08-61,434,221.33

Finding the Fourth Proportional to 108,468,780.80, 149,696,149.08 and 61,434,221.33

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Solution

The fourth proportional to 108,468,780.80, 149,696,149.08 and 61,434,221.33 is: 84,784,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,468,780.80 : 149,696,149.08 = 61,434,221.33 : x
  2. Step 2: Convert to fraction form
    108,468,780.80/149,696,149.08 = 61,434,221.33/x
  3. Step 3: Cross multiply
    108,468,780.80x = 149,696,149.08 × 61,434,221.33
  4. Step 4: Simplify right side
    108,468,780.80x = 9,196,466,354,246,098
  5. Step 5: Solve for x
    x = 9,196,466,354,246,098/108,468,780.80
  6. Step 6: Final answer
    x = 84,784,453.99

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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.