Home / 20,123,165.34-30,140,755.29-15,562,220.58

Finding the Fourth Proportional to 20,123,165.34, 30,140,755.29 and 15,562,220.58

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Solution

The fourth proportional to 20,123,165.34, 30,140,755.29 and 15,562,220.58 is: 23,309,309.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,165.34 : 30,140,755.29 = 15,562,220.58 : x
  2. Step 2: Convert to fraction form
    20,123,165.34/30,140,755.29 = 15,562,220.58/x
  3. Step 3: Cross multiply
    20,123,165.34x = 30,140,755.29 × 15,562,220.58
  4. Step 4: Simplify right side
    20,123,165.34x = 469,057,082,270,781.88
  5. Step 5: Solve for x
    x = 469,057,082,270,781.88/20,123,165.34
  6. Step 6: Final answer
    x = 23,309,309.16

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1.5x scale

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.