Home / 1,264,990,458.80-1,897,310,728.20-392,192,001.20

Finding the Fourth Proportional to 1,264,990,458.80, 1,897,310,728.20 and 392,192,001.20

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Solution

The fourth proportional to 1,264,990,458.80, 1,897,310,728.20 and 392,192,001.20 is: 588,233,757.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,990,458.80 : 1,897,310,728.20 = 392,192,001.20 : x
  2. Step 2: Convert to fraction form
    1,264,990,458.80/1,897,310,728.20 = 392,192,001.20/x
  3. Step 3: Cross multiply
    1,264,990,458.80x = 1,897,310,728.20 × 392,192,001.20
  4. Step 4: Simplify right side
    1,264,990,458.80x = 744,110,091,390,987,264
  5. Step 5: Solve for x
    x = 744,110,091,390,987,264/1,264,990,458.80
  6. Step 6: Final answer
    x = 588,233,757.98

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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.