Home / 403,819,497.60-605,729,246.40-131,217,820.80

Finding the Fourth Proportional to 403,819,497.60, 605,729,246.40 and 131,217,820.80

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Solution

The fourth proportional to 403,819,497.60, 605,729,246.40 and 131,217,820.80 is: 196,826,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,819,497.60 : 605,729,246.40 = 131,217,820.80 : x
  2. Step 2: Convert to fraction form
    403,819,497.60/605,729,246.40 = 131,217,820.80/x
  3. Step 3: Cross multiply
    403,819,497.60x = 605,729,246.40 × 131,217,820.80
  4. Step 4: Simplify right side
    403,819,497.60x = 79,482,471,707,434,240
  5. Step 5: Solve for x
    x = 79,482,471,707,434,240/403,819,497.60
  6. Step 6: Final answer
    x = 196,826,731.20

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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.