Home / 29,079,855.82-40,129,680.40-15,849,151.90

Finding the Fourth Proportional to 29,079,855.82, 40,129,680.40 and 15,849,151.90

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Solution

The fourth proportional to 29,079,855.82, 40,129,680.40 and 15,849,151.90 is: 21,871,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,079,855.82 : 40,129,680.40 = 15,849,151.90 : x
  2. Step 2: Convert to fraction form
    29,079,855.82/40,129,680.40 = 15,849,151.90/x
  3. Step 3: Cross multiply
    29,079,855.82x = 40,129,680.40 × 15,849,151.90
  4. Step 4: Simplify right side
    29,079,855.82x = 636,021,400,078,158.62
  5. Step 5: Solve for x
    x = 636,021,400,078,158.62/29,079,855.82
  6. Step 6: Final answer
    x = 21,871,545.86

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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.