Home / 13,780,057.75-20,656,191.56-8,666,142.41

Finding the Fourth Proportional to 13,780,057.75, 20,656,191.56 and 8,666,142.41

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Solution

The fourth proportional to 13,780,057.75, 20,656,191.56 and 8,666,142.41 is: 12,990,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780,057.75 : 20,656,191.56 = 8,666,142.41 : x
  2. Step 2: Convert to fraction form
    13,780,057.75/20,656,191.56 = 8,666,142.41/x
  3. Step 3: Cross multiply
    13,780,057.75x = 20,656,191.56 × 8,666,142.41
  4. Step 4: Simplify right side
    13,780,057.75x = 179,009,497,707,200.06
  5. Step 5: Solve for x
    x = 179,009,497,707,200.06/13,780,057.75
  6. Step 6: Final answer
    x = 12,990,475.15

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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.