Home / 38,731,828.76-53,445,860.14-21,981,234.11

Finding the Fourth Proportional to 38,731,828.76, 53,445,860.14 and 21,981,234.11

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Solution

The fourth proportional to 38,731,828.76, 53,445,860.14 and 21,981,234.11 is: 30,331,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,731,828.76 : 53,445,860.14 = 21,981,234.11 : x
  2. Step 2: Convert to fraction form
    38,731,828.76/53,445,860.14 = 21,981,234.11/x
  3. Step 3: Cross multiply
    38,731,828.76x = 53,445,860.14 × 21,981,234.11
  4. Step 4: Simplify right side
    38,731,828.76x = 1,174,805,964,026,319
  5. Step 5: Solve for x
    x = 1,174,805,964,026,319/38,731,828.76
  6. Step 6: Final answer
    x = 30,331,796.91

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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.