Home / 54,376,806.20-81,565,209.30-38,220,999.80

Finding the Fourth Proportional to 54,376,806.20, 81,565,209.30 and 38,220,999.80

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Solution

The fourth proportional to 54,376,806.20, 81,565,209.30 and 38,220,999.80 is: 57,331,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,376,806.20 : 81,565,209.30 = 38,220,999.80 : x
  2. Step 2: Convert to fraction form
    54,376,806.20/81,565,209.30 = 38,220,999.80/x
  3. Step 3: Cross multiply
    54,376,806.20x = 81,565,209.30 × 38,220,999.80
  4. Step 4: Simplify right side
    54,376,806.20x = 3,117,503,848,342,258
  5. Step 5: Solve for x
    x = 3,117,503,848,342,258/54,376,806.20
  6. Step 6: Final answer
    x = 57,331,499.70

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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.