Home / 81,631,291.60-112,646,930.88-50,690,801.44

Finding the Fourth Proportional to 81,631,291.60, 112,646,930.88 and 50,690,801.44

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Solution

The fourth proportional to 81,631,291.60, 112,646,930.88 and 50,690,801.44 is: 69,950,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,631,291.60 : 112,646,930.88 = 50,690,801.44 : x
  2. Step 2: Convert to fraction form
    81,631,291.60/112,646,930.88 = 50,690,801.44/x
  3. Step 3: Cross multiply
    81,631,291.60x = 112,646,930.88 × 50,690,801.44
  4. Step 4: Simplify right side
    81,631,291.60x = 5,710,163,206,063,484
  5. Step 5: Solve for x
    x = 5,710,163,206,063,484/81,631,291.60
  6. Step 6: Final answer
    x = 69,950,665.90

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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.