Home / 442,548,007.80-663,822,011.70-187,213,198.20

Finding the Fourth Proportional to 442,548,007.80, 663,822,011.70 and 187,213,198.20

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Solution

The fourth proportional to 442,548,007.80, 663,822,011.70 and 187,213,198.20 is: 280,819,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,548,007.80 : 663,822,011.70 = 187,213,198.20 : x
  2. Step 2: Convert to fraction form
    442,548,007.80/663,822,011.70 = 187,213,198.20/x
  3. Step 3: Cross multiply
    442,548,007.80x = 663,822,011.70 × 187,213,198.20
  4. Step 4: Simplify right side
    442,548,007.80x = 124,276,241,845,914,816
  5. Step 5: Solve for x
    x = 124,276,241,845,914,816/442,548,007.80
  6. Step 6: Final answer
    x = 280,819,797.30

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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.