Home / 490,040,429.60-735,060,644.40-217,438,752.80

Finding the Fourth Proportional to 490,040,429.60, 735,060,644.40 and 217,438,752.80

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Solution

The fourth proportional to 490,040,429.60, 735,060,644.40 and 217,438,752.80 is: 326,158,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,040,429.60 : 735,060,644.40 = 217,438,752.80 : x
  2. Step 2: Convert to fraction form
    490,040,429.60/735,060,644.40 = 217,438,752.80/x
  3. Step 3: Cross multiply
    490,040,429.60x = 735,060,644.40 × 217,438,752.80
  4. Step 4: Simplify right side
    490,040,429.60x = 159,830,669,750,700,320
  5. Step 5: Solve for x
    x = 159,830,669,750,700,320/490,040,429.60
  6. Step 6: Final answer
    x = 326,158,129.20

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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.