Home / 20,129,178.60-30,209,514.30-9,347,815.35

Finding the Fourth Proportional to 20,129,178.60, 30,209,514.30 and 9,347,815.35

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Solution

The fourth proportional to 20,129,178.60, 30,209,514.30 and 9,347,815.35 is: 14,029,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,178.60 : 30,209,514.30 = 9,347,815.35 : x
  2. Step 2: Convert to fraction form
    20,129,178.60/30,209,514.30 = 9,347,815.35/x
  3. Step 3: Cross multiply
    20,129,178.60x = 30,209,514.30 × 9,347,815.35
  4. Step 4: Simplify right side
    20,129,178.60x = 282,392,961,489,584.50
  5. Step 5: Solve for x
    x = 282,392,961,489,584.50/20,129,178.60
  6. Step 6: Final answer
    x = 14,029,035.52

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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.