Home / 139,639,077.28-209,491,586.16-43,900,965.28

Finding the Fourth Proportional to 139,639,077.28, 209,491,586.16 and 43,900,965.28

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Solution

The fourth proportional to 139,639,077.28, 209,491,586.16 and 43,900,965.28 is: 65,861,813.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,639,077.28 : 209,491,586.16 = 43,900,965.28 : x
  2. Step 2: Convert to fraction form
    139,639,077.28/209,491,586.16 = 43,900,965.28/x
  3. Step 3: Cross multiply
    139,639,077.28x = 209,491,586.16 × 43,900,965.28
  4. Step 4: Simplify right side
    139,639,077.28x = 9,196,882,850,462,288
  5. Step 5: Solve for x
    x = 9,196,882,850,462,288/139,639,077.28
  6. Step 6: Final answer
    x = 65,861,813.39

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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.