Home / 21,915,178.23-30,243,838.28-12,125,463.87

Finding the Fourth Proportional to 21,915,178.23, 30,243,838.28 and 12,125,463.87

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Solution

The fourth proportional to 21,915,178.23, 30,243,838.28 and 12,125,463.87 is: 16,733,633.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915,178.23 : 30,243,838.28 = 12,125,463.87 : x
  2. Step 2: Convert to fraction form
    21,915,178.23/30,243,838.28 = 12,125,463.87/x
  3. Step 3: Cross multiply
    21,915,178.23x = 30,243,838.28 × 12,125,463.87
  4. Step 4: Simplify right side
    21,915,178.23x = 366,720,568,293,635.56
  5. Step 5: Solve for x
    x = 366,720,568,293,635.56/21,915,178.23
  6. Step 6: Final answer
    x = 16,733,633.85

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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.