Home / 147,191,882.75-203,126,141.57-81,114,751.86

Finding the Fourth Proportional to 147,191,882.75, 203,126,141.57 and 81,114,751.86

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Solution

The fourth proportional to 147,191,882.75, 203,126,141.57 and 81,114,751.86 is: 111,939,097.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,191,882.75 : 203,126,141.57 = 81,114,751.86 : x
  2. Step 2: Convert to fraction form
    147,191,882.75/203,126,141.57 = 81,114,751.86/x
  3. Step 3: Cross multiply
    147,191,882.75x = 203,126,141.57 × 81,114,751.86
  4. Step 4: Simplify right side
    147,191,882.75x = 16,476,526,569,729,780
  5. Step 5: Solve for x
    x = 16,476,526,569,729,780/147,191,882.75
  6. Step 6: Final answer
    x = 111,939,097.88

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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.