Home / 12,834,432.30-19,238,686.80-8,045,478.21

Finding the Fourth Proportional to 12,834,432.30, 19,238,686.80 and 8,045,478.21

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Solution

The fourth proportional to 12,834,432.30, 19,238,686.80 and 8,045,478.21 is: 12,060,092.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834,432.30 : 19,238,686.80 = 8,045,478.21 : x
  2. Step 2: Convert to fraction form
    12,834,432.30/19,238,686.80 = 8,045,478.21/x
  3. Step 3: Cross multiply
    12,834,432.30x = 19,238,686.80 × 8,045,478.21
  4. Step 4: Simplify right side
    12,834,432.30x = 154,784,435,438,414.62
  5. Step 5: Solve for x
    x = 154,784,435,438,414.62/12,834,432.30
  6. Step 6: Final answer
    x = 12,060,092.09

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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.