Home / 204,491,709.40-306,737,564.10-66,317,049.40

Finding the Fourth Proportional to 204,491,709.40, 306,737,564.10 and 66,317,049.40

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Solution

The fourth proportional to 204,491,709.40, 306,737,564.10 and 66,317,049.40 is: 99,475,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,491,709.40 : 306,737,564.10 = 66,317,049.40 : x
  2. Step 2: Convert to fraction form
    204,491,709.40/306,737,564.10 = 66,317,049.40/x
  3. Step 3: Cross multiply
    204,491,709.40x = 306,737,564.10 × 66,317,049.40
  4. Step 4: Simplify right side
    204,491,709.40x = 20,341,930,191,255,368
  5. Step 5: Solve for x
    x = 20,341,930,191,255,368/204,491,709.40
  6. Step 6: Final answer
    x = 99,475,574.10

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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.