Home / 402,409,823.20-603,614,734.80-143,916,920.80

Finding the Fourth Proportional to 402,409,823.20, 603,614,734.80 and 143,916,920.80

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Solution

The fourth proportional to 402,409,823.20, 603,614,734.80 and 143,916,920.80 is: 215,875,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,823.20 : 603,614,734.80 = 143,916,920.80 : x
  2. Step 2: Convert to fraction form
    402,409,823.20/603,614,734.80 = 143,916,920.80/x
  3. Step 3: Cross multiply
    402,409,823.20x = 603,614,734.80 × 143,916,920.80
  4. Step 4: Simplify right side
    402,409,823.20x = 86,870,373,981,924,608
  5. Step 5: Solve for x
    x = 86,870,373,981,924,608/402,409,823.20
  6. Step 6: Final answer
    x = 215,875,381.20

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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.