Home / 720,498,685.38-1,080,835,482.15-202,929,125.60

Finding the Fourth Proportional to 720,498,685.38, 1,080,835,482.15 and 202,929,125.60

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Solution

The fourth proportional to 720,498,685.38, 1,080,835,482.15 and 202,929,125.60 is: 304,418,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,498,685.38 : 1,080,835,482.15 = 202,929,125.60 : x
  2. Step 2: Convert to fraction form
    720,498,685.38/1,080,835,482.15 = 202,929,125.60/x
  3. Step 3: Cross multiply
    720,498,685.38x = 1,080,835,482.15 × 202,929,125.60
  4. Step 4: Simplify right side
    720,498,685.38x = 219,332,999,304,749,760
  5. Step 5: Solve for x
    x = 219,332,999,304,749,760/720,498,685.38
  6. Step 6: Final answer
    x = 304,418,319.92

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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.