Home / 172,382,980.38-258,526,628.73-47,857,001.82

Finding the Fourth Proportional to 172,382,980.38, 258,526,628.73 and 47,857,001.82

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Solution

The fourth proportional to 172,382,980.38, 258,526,628.73 and 47,857,001.82 is: 71,772,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,382,980.38 : 258,526,628.73 = 47,857,001.82 : x
  2. Step 2: Convert to fraction form
    172,382,980.38/258,526,628.73 = 47,857,001.82/x
  3. Step 3: Cross multiply
    172,382,980.38x = 258,526,628.73 × 47,857,001.82
  4. Step 4: Simplify right side
    172,382,980.38x = 12,372,309,341,650,074
  5. Step 5: Solve for x
    x = 12,372,309,341,650,074/172,382,980.38
  6. Step 6: Final answer
    x = 71,772,220.87

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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.