Home / 12,500,000.80-18,712,644.33-7,561,085.87

Finding the Fourth Proportional to 12,500,000.80, 18,712,644.33 and 7,561,085.87

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Solution

The fourth proportional to 12,500,000.80, 18,712,644.33 and 7,561,085.87 is: 11,319,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500,000.80 : 18,712,644.33 = 7,561,085.87 : x
  2. Step 2: Convert to fraction form
    12,500,000.80/18,712,644.33 = 7,561,085.87/x
  3. Step 3: Cross multiply
    12,500,000.80x = 18,712,644.33 × 7,561,085.87
  4. Step 4: Simplify right side
    12,500,000.80x = 141,487,910,633,898.59
  5. Step 5: Solve for x
    x = 141,487,910,633,898.59/12,500,000.80
  6. Step 6: Final answer
    x = 11,319,032.13

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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.