Home / 30,532,589.40-45,819,879.30-12,581,693.40

Finding the Fourth Proportional to 30,532,589.40, 45,819,879.30 and 12,581,693.40

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Solution

The fourth proportional to 30,532,589.40, 45,819,879.30 and 12,581,693.40 is: 18,881,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,532,589.40 : 45,819,879.30 = 12,581,693.40 : x
  2. Step 2: Convert to fraction form
    30,532,589.40/45,819,879.30 = 12,581,693.40/x
  3. Step 3: Cross multiply
    30,532,589.40x = 45,819,879.30 × 12,581,693.40
  4. Step 4: Simplify right side
    30,532,589.40x = 576,491,672,977,606.62
  5. Step 5: Solve for x
    x = 576,491,672,977,606.62/30,532,589.40
  6. Step 6: Final answer
    x = 18,881,191.68

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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.