Home / 900,383,402.81-1,350,643,219.20-278,661,517.02

Finding the Fourth Proportional to 900,383,402.81, 1,350,643,219.20 and 278,661,517.02

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Solution

The fourth proportional to 900,383,402.81, 1,350,643,219.20 and 278,661,517.02 is: 418,013,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,383,402.81 : 1,350,643,219.20 = 278,661,517.02 : x
  2. Step 2: Convert to fraction form
    900,383,402.81/1,350,643,219.20 = 278,661,517.02/x
  3. Step 3: Cross multiply
    900,383,402.81x = 1,350,643,219.20 × 278,661,517.02
  4. Step 4: Simplify right side
    900,383,402.81x = 376,372,288,415,048,384
  5. Step 5: Solve for x
    x = 376,372,288,415,048,384/900,383,402.81
  6. Step 6: Final answer
    x = 418,013,356.58

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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.