Home / 401,296,141.38-601,799,744.91-138,909,400.29

Finding the Fourth Proportional to 401,296,141.38, 601,799,744.91 and 138,909,400.29

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Solution

The fourth proportional to 401,296,141.38, 601,799,744.91 and 138,909,400.29 is: 208,314,092.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,296,141.38 : 601,799,744.91 = 138,909,400.29 : x
  2. Step 2: Convert to fraction form
    401,296,141.38/601,799,744.91 = 138,909,400.29/x
  3. Step 3: Cross multiply
    401,296,141.38x = 601,799,744.91 × 138,909,400.29
  4. Step 4: Simplify right side
    401,296,141.38x = 83,595,641,660,123,072
  5. Step 5: Solve for x
    x = 83,595,641,660,123,072/401,296,141.38
  6. Step 6: Final answer
    x = 208,314,092.86

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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.