Home / 8,187,342.30-12,281,013.45-7,788,761.55

Finding the Fourth Proportional to 8,187,342.30, 12,281,013.45 and 7,788,761.55

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Solution

The fourth proportional to 8,187,342.30, 12,281,013.45 and 7,788,761.55 is: 11,683,142.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187,342.30 : 12,281,013.45 = 7,788,761.55 : x
  2. Step 2: Convert to fraction form
    8,187,342.30/12,281,013.45 = 7,788,761.55/x
  3. Step 3: Cross multiply
    8,187,342.30x = 12,281,013.45 × 7,788,761.55
  4. Step 4: Simplify right side
    8,187,342.30x = 95,653,885,354,392.84
  5. Step 5: Solve for x
    x = 95,653,885,354,392.84/8,187,342.30
  6. Step 6: Final answer
    x = 11,683,142.33

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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.