Home / 128,149,568.04-192,166,877.16-76,358,576.28

Finding the Fourth Proportional to 128,149,568.04, 192,166,877.16 and 76,358,576.28

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Solution

The fourth proportional to 128,149,568.04, 192,166,877.16 and 76,358,576.28 is: 114,503,617.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,149,568.04 : 192,166,877.16 = 76,358,576.28 : x
  2. Step 2: Convert to fraction form
    128,149,568.04/192,166,877.16 = 76,358,576.28/x
  3. Step 3: Cross multiply
    128,149,568.04x = 192,166,877.16 × 76,358,576.28
  4. Step 4: Simplify right side
    128,149,568.04x = 14,673,589,148,111,250
  5. Step 5: Solve for x
    x = 14,673,589,148,111,250/128,149,568.04
  6. Step 6: Final answer
    x = 114,503,617.71

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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.