Home / 129,142,234.22-178,115,507.43-82,736,806.10

Finding the Fourth Proportional to 129,142,234.22, 178,115,507.43 and 82,736,806.10

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Solution

The fourth proportional to 129,142,234.22, 178,115,507.43 and 82,736,806.10 is: 114,112,228.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,142,234.22 : 178,115,507.43 = 82,736,806.10 : x
  2. Step 2: Convert to fraction form
    129,142,234.22/178,115,507.43 = 82,736,806.10/x
  3. Step 3: Cross multiply
    129,142,234.22x = 178,115,507.43 × 82,736,806.10
  4. Step 4: Simplify right side
    129,142,234.22x = 14,736,708,201,639,018
  5. Step 5: Solve for x
    x = 14,736,708,201,639,018/129,142,234.22
  6. Step 6: Final answer
    x = 114,112,228.97

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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.