Home / 5,518,118.70-8,278,423.65-1,680,284.29

Finding the Fourth Proportional to 5,518,118.70, 8,278,423.65 and 1,680,284.29

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Solution

The fourth proportional to 5,518,118.70, 8,278,423.65 and 1,680,284.29 is: 2,520,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518,118.70 : 8,278,423.65 = 1,680,284.29 : x
  2. Step 2: Convert to fraction form
    5,518,118.70/8,278,423.65 = 1,680,284.29/x
  3. Step 3: Cross multiply
    5,518,118.70x = 8,278,423.65 × 1,680,284.29
  4. Step 4: Simplify right side
    5,518,118.70x = 13,910,105,205,059.46
  5. Step 5: Solve for x
    x = 13,910,105,205,059.46/5,518,118.70
  6. Step 6: Final answer
    x = 2,520,805.72

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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.