Home / 8,520,531.16-12,780,909.76-2,840,757.28

Finding the Fourth Proportional to 8,520,531.16, 12,780,909.76 and 2,840,757.28

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Solution

The fourth proportional to 8,520,531.16, 12,780,909.76 and 2,840,757.28 is: 4,261,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,531.16 : 12,780,909.76 = 2,840,757.28 : x
  2. Step 2: Convert to fraction form
    8,520,531.16/12,780,909.76 = 2,840,757.28/x
  3. Step 3: Cross multiply
    8,520,531.16x = 12,780,909.76 × 2,840,757.28
  4. Step 4: Simplify right side
    8,520,531.16x = 36,307,462,445,743.05
  5. Step 5: Solve for x
    x = 36,307,462,445,743.05/8,520,531.16
  6. Step 6: Final answer
    x = 4,261,173.60

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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.