Home / 1,098,145,591.80-1,647,217,065.72-280,257,980.28

Finding the Fourth Proportional to 1,098,145,591.80, 1,647,217,065.72 and 280,257,980.28

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Solution

The fourth proportional to 1,098,145,591.80, 1,647,217,065.72 and 280,257,980.28 is: 420,386,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,145,591.80 : 1,647,217,065.72 = 280,257,980.28 : x
  2. Step 2: Convert to fraction form
    1,098,145,591.80/1,647,217,065.72 = 280,257,980.28/x
  3. Step 3: Cross multiply
    1,098,145,591.80x = 1,647,217,065.72 × 280,257,980.28
  4. Step 4: Simplify right side
    1,098,145,591.80x = 461,645,727,921,435,200
  5. Step 5: Solve for x
    x = 461,645,727,921,435,200/1,098,145,591.80
  6. Step 6: Final answer
    x = 420,386,633.04

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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.