Home / 90,660,974.38-125,108,494.67-49,406,981.02

Finding the Fourth Proportional to 90,660,974.38, 125,108,494.67 and 49,406,981.02

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Solution

The fourth proportional to 90,660,974.38, 125,108,494.67 and 49,406,981.02 is: 68,179,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,660,974.38 : 125,108,494.67 = 49,406,981.02 : x
  2. Step 2: Convert to fraction form
    90,660,974.38/125,108,494.67 = 49,406,981.02/x
  3. Step 3: Cross multiply
    90,660,974.38x = 125,108,494.67 × 49,406,981.02
  4. Step 4: Simplify right side
    90,660,974.38x = 6,181,233,021,412,207
  5. Step 5: Solve for x
    x = 6,181,233,021,412,207/90,660,974.38
  6. Step 6: Final answer
    x = 68,179,644.70

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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.