Home / 206,898,149.88-309,996,028.80-124,844,621.76

Finding the Fourth Proportional to 206,898,149.88, 309,996,028.80 and 124,844,621.76

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Solution

The fourth proportional to 206,898,149.88, 309,996,028.80 and 124,844,621.76 is: 187,055,017.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,898,149.88 : 309,996,028.80 = 124,844,621.76 : x
  2. Step 2: Convert to fraction form
    206,898,149.88/309,996,028.80 = 124,844,621.76/x
  3. Step 3: Cross multiply
    206,898,149.88x = 309,996,028.80 × 124,844,621.76
  4. Step 4: Simplify right side
    206,898,149.88x = 38,701,336,962,638,072
  5. Step 5: Solve for x
    x = 38,701,336,962,638,072/206,898,149.88
  6. Step 6: Final answer
    x = 187,055,017.09

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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.