Home / 20,743,339.60-31,115,009.40-8,774,520.40

Finding the Fourth Proportional to 20,743,339.60, 31,115,009.40 and 8,774,520.40

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Solution

The fourth proportional to 20,743,339.60, 31,115,009.40 and 8,774,520.40 is: 13,161,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,339.60 : 31,115,009.40 = 8,774,520.40 : x
  2. Step 2: Convert to fraction form
    20,743,339.60/31,115,009.40 = 8,774,520.40/x
  3. Step 3: Cross multiply
    20,743,339.60x = 31,115,009.40 × 8,774,520.40
  4. Step 4: Simplify right side
    20,743,339.60x = 273,019,284,726,491.75
  5. Step 5: Solve for x
    x = 273,019,284,726,491.75/20,743,339.60
  6. Step 6: Final answer
    x = 13,161,780.60

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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.