Home / 119,449,639.08-178,991,935.56-80,443,863.72

Finding the Fourth Proportional to 119,449,639.08, 178,991,935.56 and 80,443,863.72

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Solution

The fourth proportional to 119,449,639.08, 178,991,935.56 and 80,443,863.72 is: 120,542,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,449,639.08 : 178,991,935.56 = 80,443,863.72 : x
  2. Step 2: Convert to fraction form
    119,449,639.08/178,991,935.56 = 80,443,863.72/x
  3. Step 3: Cross multiply
    119,449,639.08x = 178,991,935.56 × 80,443,863.72
  4. Step 4: Simplify right side
    119,449,639.08x = 14,398,802,871,167,662
  5. Step 5: Solve for x
    x = 14,398,802,871,167,662/119,449,639.08
  6. Step 6: Final answer
    x = 120,542,874.65

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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.