Home / 99,123,105.83-136,781,866.40-57,309,853.85

Finding the Fourth Proportional to 99,123,105.83, 136,781,866.40 and 57,309,853.85

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Solution

The fourth proportional to 99,123,105.83, 136,781,866.40 and 57,309,853.85 is: 79,082,961.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,123,105.83 : 136,781,866.40 = 57,309,853.85 : x
  2. Step 2: Convert to fraction form
    99,123,105.83/136,781,866.40 = 57,309,853.85/x
  3. Step 3: Cross multiply
    99,123,105.83x = 136,781,866.40 × 57,309,853.85
  4. Step 4: Simplify right side
    99,123,105.83x = 7,838,948,772,769,632
  5. Step 5: Solve for x
    x = 7,838,948,772,769,632/99,123,105.83
  6. Step 6: Final answer
    x = 79,082,961.61

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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.