Home / 10,811,967.20-14,920,520.55-5,917,186.43

Finding the Fourth Proportional to 10,811,967.20, 14,920,520.55 and 5,917,186.43

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Solution

The fourth proportional to 10,811,967.20, 14,920,520.55 and 5,917,186.43 is: 8,165,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811,967.20 : 14,920,520.55 = 5,917,186.43 : x
  2. Step 2: Convert to fraction form
    10,811,967.20/14,920,520.55 = 5,917,186.43/x
  3. Step 3: Cross multiply
    10,811,967.20x = 14,920,520.55 × 5,917,186.43
  4. Step 4: Simplify right side
    10,811,967.20x = 88,287,501,726,996.14
  5. Step 5: Solve for x
    x = 88,287,501,726,996.14/10,811,967.20
  6. Step 6: Final answer
    x = 8,165,720.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.