Home / 15,107,579.55-20,847,807.86-8,581,188.69

Finding the Fourth Proportional to 15,107,579.55, 20,847,807.86 and 8,581,188.69

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Solution

The fourth proportional to 15,107,579.55, 20,847,807.86 and 8,581,188.69 is: 11,841,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107,579.55 : 20,847,807.86 = 8,581,188.69 : x
  2. Step 2: Convert to fraction form
    15,107,579.55/20,847,807.86 = 8,581,188.69/x
  3. Step 3: Cross multiply
    15,107,579.55x = 20,847,807.86 × 8,581,188.69
  4. Step 4: Simplify right side
    15,107,579.55x = 178,898,972,976,619.16
  5. Step 5: Solve for x
    x = 178,898,972,976,619.16/15,107,579.55
  6. Step 6: Final answer
    x = 11,841,670.10

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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.