Home / 402,408,999.70-603,613,499.55-329,707,870.90

Finding the Fourth Proportional to 402,408,999.70, 603,613,499.55 and 329,707,870.90

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Solution

The fourth proportional to 402,408,999.70, 603,613,499.55 and 329,707,870.90 is: 494,561,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,999.70 : 603,613,499.55 = 329,707,870.90 : x
  2. Step 2: Convert to fraction form
    402,408,999.70/603,613,499.55 = 329,707,870.90/x
  3. Step 3: Cross multiply
    402,408,999.70x = 603,613,499.55 × 329,707,870.90
  4. Step 4: Simplify right side
    402,408,999.70x = 199,016,121,783,128,576
  5. Step 5: Solve for x
    x = 199,016,121,783,128,576/402,408,999.70
  6. Step 6: Final answer
    x = 494,561,806.35

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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.