Home / 20,160,605.40-30,240,908.10-18,082,080.60

Finding the Fourth Proportional to 20,160,605.40, 30,240,908.10 and 18,082,080.60

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Solution

The fourth proportional to 20,160,605.40, 30,240,908.10 and 18,082,080.60 is: 27,123,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,605.40 : 30,240,908.10 = 18,082,080.60 : x
  2. Step 2: Convert to fraction form
    20,160,605.40/30,240,908.10 = 18,082,080.60/x
  3. Step 3: Cross multiply
    20,160,605.40x = 30,240,908.10 × 18,082,080.60
  4. Step 4: Simplify right side
    20,160,605.40x = 546,818,537,681,392.94
  5. Step 5: Solve for x
    x = 546,818,537,681,392.94/20,160,605.40
  6. Step 6: Final answer
    x = 27,123,120.90

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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.