Home / 2,131,569.90-3,197,354.85-2,119,128.30

Finding the Fourth Proportional to 2,131,569.90, 3,197,354.85 and 2,119,128.30

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Solution

The fourth proportional to 2,131,569.90, 3,197,354.85 and 2,119,128.30 is: 3,178,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,569.90 : 3,197,354.85 = 2,119,128.30 : x
  2. Step 2: Convert to fraction form
    2,131,569.90/3,197,354.85 = 2,119,128.30/x
  3. Step 3: Cross multiply
    2,131,569.90x = 3,197,354.85 × 2,119,128.30
  4. Step 4: Simplify right side
    2,131,569.90x = 6,775,605,147,777.26
  5. Step 5: Solve for x
    x = 6,775,605,147,777.26/2,131,569.90
  6. Step 6: Final answer
    x = 3,178,692.45

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Double scale
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Similar ratio
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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.