Home / 100,177,036.74-138,240,968.30-55,521,105.88

Finding the Fourth Proportional to 100,177,036.74, 138,240,968.30 and 55,521,105.88

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Solution

The fourth proportional to 100,177,036.74, 138,240,968.30 and 55,521,105.88 is: 76,617,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,177,036.74 : 138,240,968.30 = 55,521,105.88 : x
  2. Step 2: Convert to fraction form
    100,177,036.74/138,240,968.30 = 55,521,105.88/x
  3. Step 3: Cross multiply
    100,177,036.74x = 138,240,968.30 × 55,521,105.88
  4. Step 4: Simplify right side
    100,177,036.74x = 7,675,291,437,938,025
  5. Step 5: Solve for x
    x = 7,675,291,437,938,025/100,177,036.74
  6. Step 6: Final answer
    x = 76,617,273.66

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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.