Home / 129,154,137.91-178,227,576.62-76,247,887.61

Finding the Fourth Proportional to 129,154,137.91, 178,227,576.62 and 76,247,887.61

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Solution

The fourth proportional to 129,154,137.91, 178,227,576.62 and 76,247,887.61 is: 105,219,054.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,154,137.91 : 178,227,576.62 = 76,247,887.61 : x
  2. Step 2: Convert to fraction form
    129,154,137.91/178,227,576.62 = 76,247,887.61/x
  3. Step 3: Cross multiply
    129,154,137.91x = 178,227,576.62 × 76,247,887.61
  4. Step 4: Simplify right side
    129,154,137.91x = 13,589,476,231,124,424
  5. Step 5: Solve for x
    x = 13,589,476,231,124,424/129,154,137.91
  6. Step 6: Final answer
    x = 105,219,054.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.