Home / 402,149,115.20-603,223,672.80-143,656,212.80

Finding the Fourth Proportional to 402,149,115.20, 603,223,672.80 and 143,656,212.80

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Solution

The fourth proportional to 402,149,115.20, 603,223,672.80 and 143,656,212.80 is: 215,484,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,149,115.20 : 603,223,672.80 = 143,656,212.80 : x
  2. Step 2: Convert to fraction form
    402,149,115.20/603,223,672.80 = 143,656,212.80/x
  3. Step 3: Cross multiply
    402,149,115.20x = 603,223,672.80 × 143,656,212.80
  4. Step 4: Simplify right side
    402,149,115.20x = 86,656,828,305,754,368
  5. Step 5: Solve for x
    x = 86,656,828,305,754,368/402,149,115.20
  6. Step 6: Final answer
    x = 215,484,319.20

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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.