Home / 402,149,243.20-603,223,864.80-143,656,340.80

Finding the Fourth Proportional to 402,149,243.20, 603,223,864.80 and 143,656,340.80

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Solution

The fourth proportional to 402,149,243.20, 603,223,864.80 and 143,656,340.80 is: 215,484,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,149,243.20 : 603,223,864.80 = 143,656,340.80 : x
  2. Step 2: Convert to fraction form
    402,149,243.20/603,223,864.80 = 143,656,340.80/x
  3. Step 3: Cross multiply
    402,149,243.20x = 603,223,864.80 × 143,656,340.80
  4. Step 4: Simplify right side
    402,149,243.20x = 86,656,933,100,401,920
  5. Step 5: Solve for x
    x = 86,656,933,100,401,920/402,149,243.20
  6. Step 6: Final answer
    x = 215,484,511.20

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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.