Home / 38,449,930.32-53,060,982.12-21,047,386.50

Finding the Fourth Proportional to 38,449,930.32, 53,060,982.12 and 21,047,386.50

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Solution

The fourth proportional to 38,449,930.32, 53,060,982.12 and 21,047,386.50 is: 29,045,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,449,930.32 : 53,060,982.12 = 21,047,386.50 : x
  2. Step 2: Convert to fraction form
    38,449,930.32/53,060,982.12 = 21,047,386.50/x
  3. Step 3: Cross multiply
    38,449,930.32x = 53,060,982.12 × 21,047,386.50
  4. Step 4: Simplify right side
    38,449,930.32x = 1,116,794,998,749,229.38
  5. Step 5: Solve for x
    x = 1,116,794,998,749,229.38/38,449,930.32
  6. Step 6: Final answer
    x = 29,045,436.22

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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.