Home / 82,517,430.60-123,776,145.90-73,908,086.40

Finding the Fourth Proportional to 82,517,430.60, 123,776,145.90 and 73,908,086.40

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Solution

The fourth proportional to 82,517,430.60, 123,776,145.90 and 73,908,086.40 is: 110,862,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,517,430.60 : 123,776,145.90 = 73,908,086.40 : x
  2. Step 2: Convert to fraction form
    82,517,430.60/123,776,145.90 = 73,908,086.40/x
  3. Step 3: Cross multiply
    82,517,430.60x = 123,776,145.90 × 73,908,086.40
  4. Step 4: Simplify right side
    82,517,430.60x = 9,148,058,085,436,206
  5. Step 5: Solve for x
    x = 9,148,058,085,436,206/82,517,430.60
  6. Step 6: Final answer
    x = 110,862,129.60

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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.