Home / 20,088,195.40-30,140,166.30-7,309,991.80

Finding the Fourth Proportional to 20,088,195.40, 30,140,166.30 and 7,309,991.80

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Solution

The fourth proportional to 20,088,195.40, 30,140,166.30 and 7,309,991.80 is: 10,967,852.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088,195.40 : 30,140,166.30 = 7,309,991.80 : x
  2. Step 2: Convert to fraction form
    20,088,195.40/30,140,166.30 = 7,309,991.80/x
  3. Step 3: Cross multiply
    20,088,195.40x = 30,140,166.30 × 7,309,991.80
  4. Step 4: Simplify right side
    20,088,195.40x = 220,324,368,503,636.34
  5. Step 5: Solve for x
    x = 220,324,368,503,636.34/20,088,195.40
  6. Step 6: Final answer
    x = 10,967,852.72

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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.