Home / 221,336,983.98-332,120,378.56-90,275,412.64

Finding the Fourth Proportional to 221,336,983.98, 332,120,378.56 and 90,275,412.64

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Solution

The fourth proportional to 221,336,983.98, 332,120,378.56 and 90,275,412.64 is: 135,459,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,336,983.98 : 332,120,378.56 = 90,275,412.64 : x
  2. Step 2: Convert to fraction form
    221,336,983.98/332,120,378.56 = 90,275,412.64/x
  3. Step 3: Cross multiply
    221,336,983.98x = 332,120,378.56 × 90,275,412.64
  4. Step 4: Simplify right side
    221,336,983.98x = 29,982,304,220,657,008
  5. Step 5: Solve for x
    x = 29,982,304,220,657,008/221,336,983.98
  6. Step 6: Final answer
    x = 135,459,983.60

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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.