Home / 82,136,364.38-123,325,661.03-45,815,718.14

Finding the Fourth Proportional to 82,136,364.38, 123,325,661.03 and 45,815,718.14

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Solution

The fourth proportional to 82,136,364.38, 123,325,661.03 and 45,815,718.14 is: 68,791,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,136,364.38 : 123,325,661.03 = 45,815,718.14 : x
  2. Step 2: Convert to fraction form
    82,136,364.38/123,325,661.03 = 45,815,718.14/x
  3. Step 3: Cross multiply
    82,136,364.38x = 123,325,661.03 × 45,815,718.14
  4. Step 4: Simplify right side
    82,136,364.38x = 5,650,253,724,333,955
  5. Step 5: Solve for x
    x = 5,650,253,724,333,955/82,136,364.38
  6. Step 6: Final answer
    x = 68,791,134.93

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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.