Home / 56,049,487.20-84,074,230.80-47,121,278.40

Finding the Fourth Proportional to 56,049,487.20, 84,074,230.80 and 47,121,278.40

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Solution

The fourth proportional to 56,049,487.20, 84,074,230.80 and 47,121,278.40 is: 70,681,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,049,487.20 : 84,074,230.80 = 47,121,278.40 : x
  2. Step 2: Convert to fraction form
    56,049,487.20/84,074,230.80 = 47,121,278.40/x
  3. Step 3: Cross multiply
    56,049,487.20x = 84,074,230.80 × 47,121,278.40
  4. Step 4: Simplify right side
    56,049,487.20x = 3,961,685,235,792,654.50
  5. Step 5: Solve for x
    x = 3,961,685,235,792,654.50/56,049,487.20
  6. Step 6: Final answer
    x = 70,681,917.60

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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.