Home / 12,041,508.28-16,612,991.58-7,142,978.20

Finding the Fourth Proportional to 12,041,508.28, 16,612,991.58 and 7,142,978.20

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Solution

The fourth proportional to 12,041,508.28, 16,612,991.58 and 7,142,978.20 is: 9,854,765.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041,508.28 : 16,612,991.58 = 7,142,978.20 : x
  2. Step 2: Convert to fraction form
    12,041,508.28/16,612,991.58 = 7,142,978.20/x
  3. Step 3: Cross multiply
    12,041,508.28x = 16,612,991.58 × 7,142,978.20
  4. Step 4: Simplify right side
    12,041,508.28x = 118,666,236,692,723.56
  5. Step 5: Solve for x
    x = 118,666,236,692,723.56/12,041,508.28
  6. Step 6: Final answer
    x = 9,854,765.19

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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.