Home / 8,239,168.69-12,359,426.96-4,138,381.21

Finding the Fourth Proportional to 8,239,168.69, 12,359,426.96 and 4,138,381.21

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Solution

The fourth proportional to 8,239,168.69, 12,359,426.96 and 4,138,381.21 is: 6,207,910.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239,168.69 : 12,359,426.96 = 4,138,381.21 : x
  2. Step 2: Convert to fraction form
    8,239,168.69/12,359,426.96 = 4,138,381.21/x
  3. Step 3: Cross multiply
    8,239,168.69x = 12,359,426.96 × 4,138,381.21
  4. Step 4: Simplify right side
    8,239,168.69x = 51,148,020,297,631.42
  5. Step 5: Solve for x
    x = 51,148,020,297,631.42/8,239,168.69
  6. Step 6: Final answer
    x = 6,207,910.31

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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.