Home / 20,644,765.60-30,956,650.80-12,127,712.80

Finding the Fourth Proportional to 20,644,765.60, 30,956,650.80 and 12,127,712.80

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Solution

The fourth proportional to 20,644,765.60, 30,956,650.80 and 12,127,712.80 is: 18,185,402.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,765.60 : 30,956,650.80 = 12,127,712.80 : x
  2. Step 2: Convert to fraction form
    20,644,765.60/30,956,650.80 = 12,127,712.80/x
  3. Step 3: Cross multiply
    20,644,765.60x = 30,956,650.80 × 12,127,712.80
  4. Step 4: Simplify right side
    20,644,765.60x = 375,433,370,152,290.25
  5. Step 5: Solve for x
    x = 375,433,370,152,290.25/20,644,765.60
  6. Step 6: Final answer
    x = 18,185,402.41

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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.