Home / 105,715,155.38-145,887,909.44-59,306,405.72

Finding the Fourth Proportional to 105,715,155.38, 145,887,909.44 and 59,306,405.72

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Solution

The fourth proportional to 105,715,155.38, 145,887,909.44 and 59,306,405.72 is: 81,843,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,715,155.38 : 145,887,909.44 = 59,306,405.72 : x
  2. Step 2: Convert to fraction form
    105,715,155.38/145,887,909.44 = 59,306,405.72/x
  3. Step 3: Cross multiply
    105,715,155.38x = 145,887,909.44 × 59,306,405.72
  4. Step 4: Simplify right side
    105,715,155.38x = 8,652,087,545,865,287
  5. Step 5: Solve for x
    x = 8,652,087,545,865,287/105,715,155.38
  6. Step 6: Final answer
    x = 81,843,398.09

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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.