Home / 414,491,438.30-621,931,308.72-204,287,532.80

Finding the Fourth Proportional to 414,491,438.30, 621,931,308.72 and 204,287,532.80

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Solution

The fourth proportional to 414,491,438.30, 621,931,308.72 and 204,287,532.80 is: 306,526,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,491,438.30 : 621,931,308.72 = 204,287,532.80 : x
  2. Step 2: Convert to fraction form
    414,491,438.30/621,931,308.72 = 204,287,532.80/x
  3. Step 3: Cross multiply
    414,491,438.30x = 621,931,308.72 × 204,287,532.80
  4. Step 4: Simplify right side
    414,491,438.30x = 127,052,812,629,483,936
  5. Step 5: Solve for x
    x = 127,052,812,629,483,936/414,491,438.30
  6. Step 6: Final answer
    x = 306,526,989.20

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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.