Home / 553,553,998.20-830,330,997.30-225,920,621.70

Finding the Fourth Proportional to 553,553,998.20, 830,330,997.30 and 225,920,621.70

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Solution

The fourth proportional to 553,553,998.20, 830,330,997.30 and 225,920,621.70 is: 338,880,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,553,998.20 : 830,330,997.30 = 225,920,621.70 : x
  2. Step 2: Convert to fraction form
    553,553,998.20/830,330,997.30 = 225,920,621.70/x
  3. Step 3: Cross multiply
    553,553,998.20x = 830,330,997.30 × 225,920,621.70
  4. Step 4: Simplify right side
    553,553,998.20x = 187,588,895,126,796,992
  5. Step 5: Solve for x
    x = 187,588,895,126,796,992/553,553,998.20
  6. Step 6: Final answer
    x = 338,880,932.55

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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.