Home / 8,430,045.91-12,652,998.86-7,969,311.38

Finding the Fourth Proportional to 8,430,045.91, 12,652,998.86 and 7,969,311.38

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Solution

The fourth proportional to 8,430,045.91, 12,652,998.86 and 7,969,311.38 is: 11,961,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430,045.91 : 12,652,998.86 = 7,969,311.38 : x
  2. Step 2: Convert to fraction form
    8,430,045.91/12,652,998.86 = 7,969,311.38/x
  3. Step 3: Cross multiply
    8,430,045.91x = 12,652,998.86 × 7,969,311.38
  4. Step 4: Simplify right side
    8,430,045.91x = 100,835,687,786,507.69
  5. Step 5: Solve for x
    x = 100,835,687,786,507.69/8,430,045.91
  6. Step 6: Final answer
    x = 11,961,463.66

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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.