Home / 553,553,999.20-830,330,998.80-225,920,622.70

Finding the Fourth Proportional to 553,553,999.20, 830,330,998.80 and 225,920,622.70

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Solution

The fourth proportional to 553,553,999.20, 830,330,998.80 and 225,920,622.70 is: 338,880,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,553,999.20 : 830,330,998.80 = 225,920,622.70 : x
  2. Step 2: Convert to fraction form
    553,553,999.20/830,330,998.80 = 225,920,622.70/x
  3. Step 3: Cross multiply
    553,553,999.20x = 830,330,998.80 × 225,920,622.70
  4. Step 4: Simplify right side
    553,553,999.20x = 187,588,896,296,008,928
  5. Step 5: Solve for x
    x = 187,588,896,296,008,928/553,553,999.20
  6. Step 6: Final answer
    x = 338,880,934.05

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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.