Home / 14,028,279.30-21,000,428.55-12,516,624.90

Finding the Fourth Proportional to 14,028,279.30, 21,000,428.55 and 12,516,624.90

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Solution

The fourth proportional to 14,028,279.30, 21,000,428.55 and 12,516,624.90 is: 18,737,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028,279.30 : 21,000,428.55 = 12,516,624.90 : x
  2. Step 2: Convert to fraction form
    14,028,279.30/21,000,428.55 = 12,516,624.90/x
  3. Step 3: Cross multiply
    14,028,279.30x = 21,000,428.55 × 12,516,624.90
  4. Step 4: Simplify right side
    14,028,279.30x = 262,854,486,899,600.91
  5. Step 5: Solve for x
    x = 262,854,486,899,600.91/14,028,279.30
  6. Step 6: Final answer
    x = 18,737,471.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.