Home / 131,049,720.90-196,723,880.55-77,227,359.30

Finding the Fourth Proportional to 131,049,720.90, 196,723,880.55 and 77,227,359.30

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Solution

The fourth proportional to 131,049,720.90, 196,723,880.55 and 77,227,359.30 is: 115,929,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,049,720.90 : 196,723,880.55 = 77,227,359.30 : x
  2. Step 2: Convert to fraction form
    131,049,720.90/196,723,880.55 = 77,227,359.30/x
  3. Step 3: Cross multiply
    131,049,720.90x = 196,723,880.55 × 77,227,359.30
  4. Step 4: Simplify right side
    131,049,720.90x = 15,192,465,806,125,132
  5. Step 5: Solve for x
    x = 15,192,465,806,125,132/131,049,720.90
  6. Step 6: Final answer
    x = 115,929,020.69

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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.