Home / 15,375,518.88-21,218,658.90-8,500,443.81

Finding the Fourth Proportional to 15,375,518.88, 21,218,658.90 and 8,500,443.81

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Solution

The fourth proportional to 15,375,518.88, 21,218,658.90 and 8,500,443.81 is: 11,730,857.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375,518.88 : 21,218,658.90 = 8,500,443.81 : x
  2. Step 2: Convert to fraction form
    15,375,518.88/21,218,658.90 = 8,500,443.81/x
  3. Step 3: Cross multiply
    15,375,518.88x = 21,218,658.90 × 8,500,443.81
  4. Step 4: Simplify right side
    15,375,518.88x = 180,368,017,703,006.41
  5. Step 5: Solve for x
    x = 180,368,017,703,006.41/15,375,518.88
  6. Step 6: Final answer
    x = 11,730,857.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.