Home / 38,731,833.84-53,445,867.11-21,981,239.18

Finding the Fourth Proportional to 38,731,833.84, 53,445,867.11 and 21,981,239.18

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Solution

The fourth proportional to 38,731,833.84, 53,445,867.11 and 21,981,239.18 is: 30,331,803.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,731,833.84 : 53,445,867.11 = 21,981,239.18 : x
  2. Step 2: Convert to fraction form
    38,731,833.84/53,445,867.11 = 21,981,239.18/x
  3. Step 3: Cross multiply
    38,731,833.84x = 53,445,867.11 × 21,981,239.18
  4. Step 4: Simplify right side
    38,731,833.84x = 1,174,806,387,750,269.75
  5. Step 5: Solve for x
    x = 1,174,806,387,750,269.75/38,731,833.84
  6. Step 6: Final answer
    x = 30,331,803.87

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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.