Home / 402,409,261.20-603,613,891.80-329,708,132.40

Finding the Fourth Proportional to 402,409,261.20, 603,613,891.80 and 329,708,132.40

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Solution

The fourth proportional to 402,409,261.20, 603,613,891.80 and 329,708,132.40 is: 494,562,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,261.20 : 603,613,891.80 = 329,708,132.40 : x
  2. Step 2: Convert to fraction form
    402,409,261.20/603,613,891.80 = 329,708,132.40/x
  3. Step 3: Cross multiply
    402,409,261.20x = 603,613,891.80 × 329,708,132.40
  4. Step 4: Simplify right side
    402,409,261.20x = 199,016,408,956,073,632
  5. Step 5: Solve for x
    x = 199,016,408,956,073,632/402,409,261.20
  6. Step 6: Final answer
    x = 494,562,198.60

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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.