Home / 381,308,281.20-571,962,421.80-108,643,618.80

Finding the Fourth Proportional to 381,308,281.20, 571,962,421.80 and 108,643,618.80

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Solution

The fourth proportional to 381,308,281.20, 571,962,421.80 and 108,643,618.80 is: 162,965,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,308,281.20 : 571,962,421.80 = 108,643,618.80 : x
  2. Step 2: Convert to fraction form
    381,308,281.20/571,962,421.80 = 108,643,618.80/x
  3. Step 3: Cross multiply
    381,308,281.20x = 571,962,421.80 × 108,643,618.80
  4. Step 4: Simplify right side
    381,308,281.20x = 62,140,067,321,964,000
  5. Step 5: Solve for x
    x = 62,140,067,321,964,000/381,308,281.20
  6. Step 6: Final answer
    x = 162,965,428.20

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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.