Home / 8,121,294.72-12,182,693.68-2,656,420.64

Finding the Fourth Proportional to 8,121,294.72, 12,182,693.68 and 2,656,420.64

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Solution

The fourth proportional to 8,121,294.72, 12,182,693.68 and 2,656,420.64 is: 3,984,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121,294.72 : 12,182,693.68 = 2,656,420.64 : x
  2. Step 2: Convert to fraction form
    8,121,294.72/12,182,693.68 = 2,656,420.64/x
  3. Step 3: Cross multiply
    8,121,294.72x = 12,182,693.68 × 2,656,420.64
  4. Step 4: Simplify right side
    8,121,294.72x = 32,362,358,942,349.55
  5. Step 5: Solve for x
    x = 32,362,358,942,349.55/8,121,294.72
  6. Step 6: Final answer
    x = 3,984,876.80

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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.