Home / 5,518,114.19-8,278,416.89-1,680,279.78

Finding the Fourth Proportional to 5,518,114.19, 8,278,416.89 and 1,680,279.78

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Solution

The fourth proportional to 5,518,114.19, 8,278,416.89 and 1,680,279.78 is: 2,520,798.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518,114.19 : 8,278,416.89 = 1,680,279.78 : x
  2. Step 2: Convert to fraction form
    5,518,114.19/8,278,416.89 = 1,680,279.78/x
  3. Step 3: Cross multiply
    5,518,114.19x = 8,278,416.89 × 1,680,279.78
  4. Step 4: Simplify right side
    5,518,114.19x = 13,910,056,510,677.48
  5. Step 5: Solve for x
    x = 13,910,056,510,677.48/5,518,114.19
  6. Step 6: Final answer
    x = 2,520,798.96

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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.