Home / 239,747,857.20-330,852,030.30-129,739,570.20

Finding the Fourth Proportional to 239,747,857.20, 330,852,030.30 and 129,739,570.20

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Solution

The fourth proportional to 239,747,857.20, 330,852,030.30 and 129,739,570.20 is: 179,040,600.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,747,857.20 : 330,852,030.30 = 129,739,570.20 : x
  2. Step 2: Convert to fraction form
    239,747,857.20/330,852,030.30 = 129,739,570.20/x
  3. Step 3: Cross multiply
    239,747,857.20x = 330,852,030.30 × 129,739,570.20
  4. Step 4: Simplify right side
    239,747,857.20x = 42,924,600,210,919,376
  5. Step 5: Solve for x
    x = 42,924,600,210,919,376/239,747,857.20
  6. Step 6: Final answer
    x = 179,040,600.04

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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.