Home / 84,200,857.70-126,301,286.55-47,921,152.10

Finding the Fourth Proportional to 84,200,857.70, 126,301,286.55 and 47,921,152.10

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Solution

The fourth proportional to 84,200,857.70, 126,301,286.55 and 47,921,152.10 is: 71,881,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,200,857.70 : 126,301,286.55 = 47,921,152.10 : x
  2. Step 2: Convert to fraction form
    84,200,857.70/126,301,286.55 = 47,921,152.10/x
  3. Step 3: Cross multiply
    84,200,857.70x = 126,301,286.55 × 47,921,152.10
  4. Step 4: Simplify right side
    84,200,857.70x = 6,052,503,163,188,234
  5. Step 5: Solve for x
    x = 6,052,503,163,188,234/84,200,857.70
  6. Step 6: Final answer
    x = 71,881,728.15

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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.