Home / 9,861,147.20-14,791,720.80-7,152,766.40

Finding the Fourth Proportional to 9,861,147.20, 14,791,720.80 and 7,152,766.40

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Solution

The fourth proportional to 9,861,147.20, 14,791,720.80 and 7,152,766.40 is: 10,729,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861,147.20 : 14,791,720.80 = 7,152,766.40 : x
  2. Step 2: Convert to fraction form
    9,861,147.20/14,791,720.80 = 7,152,766.40/x
  3. Step 3: Cross multiply
    9,861,147.20x = 14,791,720.80 × 7,152,766.40
  4. Step 4: Simplify right side
    9,861,147.20x = 105,801,723,536,421.12
  5. Step 5: Solve for x
    x = 105,801,723,536,421.12/9,861,147.20
  6. Step 6: Final answer
    x = 10,729,149.60

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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.