Home / 168,940,869.90-233,138,402.31-91,678,533.90

Finding the Fourth Proportional to 168,940,869.90, 233,138,402.31 and 91,678,533.90

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Solution

The fourth proportional to 168,940,869.90, 233,138,402.31 and 91,678,533.90 is: 126,516,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,940,869.90 : 233,138,402.31 = 91,678,533.90 : x
  2. Step 2: Convert to fraction form
    168,940,869.90/233,138,402.31 = 91,678,533.90/x
  3. Step 3: Cross multiply
    168,940,869.90x = 233,138,402.31 × 91,678,533.90
  4. Step 4: Simplify right side
    168,940,869.90x = 21,373,786,919,569,176
  5. Step 5: Solve for x
    x = 21,373,786,919,569,176/168,940,869.90
  6. Step 6: Final answer
    x = 126,516,377.78

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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.