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Finding the Fourth Proportional to 13,799,090.15, 20,675,752.98 and 8,391,382.73

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Solution

The fourth proportional to 13,799,090.15, 20,675,752.98 and 8,391,382.73 is: 12,573,159.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799,090.15 : 20,675,752.98 = 8,391,382.73 : x
  2. Step 2: Convert to fraction form
    13,799,090.15/20,675,752.98 = 8,391,382.73/x
  3. Step 3: Cross multiply
    13,799,090.15x = 20,675,752.98 × 8,391,382.73
  4. Step 4: Simplify right side
    13,799,090.15x = 173,498,156,486,118.06
  5. Step 5: Solve for x
    x = 173,498,156,486,118.06/13,799,090.15
  6. Step 6: Final answer
    x = 12,573,159.14

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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.