Home / 141,218,544.30-194,876,620.65-77,638,420.56

Finding the Fourth Proportional to 141,218,544.30, 194,876,620.65 and 77,638,420.56

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Solution

The fourth proportional to 141,218,544.30, 194,876,620.65 and 77,638,420.56 is: 107,138,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,218,544.30 : 194,876,620.65 = 77,638,420.56 : x
  2. Step 2: Convert to fraction form
    141,218,544.30/194,876,620.65 = 77,638,420.56/x
  3. Step 3: Cross multiply
    141,218,544.30x = 194,876,620.65 × 77,638,420.56
  4. Step 4: Simplify right side
    141,218,544.30x = 15,129,913,031,336,282
  5. Step 5: Solve for x
    x = 15,129,913,031,336,282/141,218,544.30
  6. Step 6: Final answer
    x = 107,138,287.73

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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.