Home / 20,160,640.90-30,240,961.35-18,082,116.10

Finding the Fourth Proportional to 20,160,640.90, 30,240,961.35 and 18,082,116.10

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Solution

The fourth proportional to 20,160,640.90, 30,240,961.35 and 18,082,116.10 is: 27,123,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,640.90 : 30,240,961.35 = 18,082,116.10 : x
  2. Step 2: Convert to fraction form
    20,160,640.90/30,240,961.35 = 18,082,116.10/x
  3. Step 3: Cross multiply
    20,160,640.90x = 30,240,961.35 × 18,082,116.10
  4. Step 4: Simplify right side
    20,160,640.90x = 546,820,574,106,312.81
  5. Step 5: Solve for x
    x = 546,820,574,106,312.81/20,160,640.90
  6. Step 6: Final answer
    x = 27,123,174.15

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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.