Home / 82,046,157.72-113,258,560.20-51,121,605.90

Finding the Fourth Proportional to 82,046,157.72, 113,258,560.20 and 51,121,605.90

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Solution

The fourth proportional to 82,046,157.72, 113,258,560.20 and 51,121,605.90 is: 70,569,538.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,046,157.72 : 113,258,560.20 = 51,121,605.90 : x
  2. Step 2: Convert to fraction form
    82,046,157.72/113,258,560.20 = 51,121,605.90/x
  3. Step 3: Cross multiply
    82,046,157.72x = 113,258,560.20 × 51,121,605.90
  4. Step 4: Simplify right side
    82,046,157.72x = 5,789,959,479,345,825
  5. Step 5: Solve for x
    x = 5,789,959,479,345,825/82,046,157.72
  6. Step 6: Final answer
    x = 70,569,538.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.