Home / 8,198,769.90-12,305,590.65-4,158,068.70

Finding the Fourth Proportional to 8,198,769.90, 12,305,590.65 and 4,158,068.70

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Solution

The fourth proportional to 8,198,769.90, 12,305,590.65 and 4,158,068.70 is: 6,240,874.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198,769.90 : 12,305,590.65 = 4,158,068.70 : x
  2. Step 2: Convert to fraction form
    8,198,769.90/12,305,590.65 = 4,158,068.70/x
  3. Step 3: Cross multiply
    8,198,769.90x = 12,305,590.65 × 4,158,068.70
  4. Step 4: Simplify right side
    8,198,769.90x = 51,167,491,316,777.66
  5. Step 5: Solve for x
    x = 51,167,491,316,777.66/8,198,769.90
  6. Step 6: Final answer
    x = 6,240,874.17

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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.