Home / 82,486,520.17-123,759,954.06-77,613,496.83

Finding the Fourth Proportional to 82,486,520.17, 123,759,954.06 and 77,613,496.83

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Solution

The fourth proportional to 82,486,520.17, 123,759,954.06 and 77,613,496.83 is: 116,448,636.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,486,520.17 : 123,759,954.06 = 77,613,496.83 : x
  2. Step 2: Convert to fraction form
    82,486,520.17/123,759,954.06 = 77,613,496.83/x
  3. Step 3: Cross multiply
    82,486,520.17x = 123,759,954.06 × 77,613,496.83
  4. Step 4: Simplify right side
    82,486,520.17x = 9,605,442,802,289,804
  5. Step 5: Solve for x
    x = 9,605,442,802,289,804/82,486,520.17
  6. Step 6: Final answer
    x = 116,448,636.49

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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.