Home / 1,431,357,778.80-2,146,797,497.80-396,323,287.20

Finding the Fourth Proportional to 1,431,357,778.80, 2,146,797,497.80 and 396,323,287.20

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Solution

The fourth proportional to 1,431,357,778.80, 2,146,797,497.80 and 396,323,287.20 is: 594,418,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,357,778.80 : 2,146,797,497.80 = 396,323,287.20 : x
  2. Step 2: Convert to fraction form
    1,431,357,778.80/2,146,797,497.80 = 396,323,287.20/x
  3. Step 3: Cross multiply
    1,431,357,778.80x = 2,146,797,497.80 × 396,323,287.20
  4. Step 4: Simplify right side
    1,431,357,778.80x = 850,825,841,280,830,720
  5. Step 5: Solve for x
    x = 850,825,841,280,830,720/1,431,357,778.80
  6. Step 6: Final answer
    x = 594,418,707.80

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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.