Home / 12,491,439.20-18,744,157.20-5,301,749.60

Finding the Fourth Proportional to 12,491,439.20, 18,744,157.20 and 5,301,749.60

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Solution

The fourth proportional to 12,491,439.20, 18,744,157.20 and 5,301,749.60 is: 7,955,594.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,439.20 : 18,744,157.20 = 5,301,749.60 : x
  2. Step 2: Convert to fraction form
    12,491,439.20/18,744,157.20 = 5,301,749.60/x
  3. Step 3: Cross multiply
    12,491,439.20x = 18,744,157.20 × 5,301,749.60
  4. Step 4: Simplify right side
    12,491,439.20x = 99,376,827,937,437.11
  5. Step 5: Solve for x
    x = 99,376,827,937,437.11/12,491,439.20
  6. Step 6: Final answer
    x = 7,955,594.74

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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.