Home / 154,641,680.56-213,399,779.88-85,022,919.28

Finding the Fourth Proportional to 154,641,680.56, 213,399,779.88 and 85,022,919.28

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Solution

The fourth proportional to 154,641,680.56, 213,399,779.88 and 85,022,919.28 is: 117,328,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,641,680.56 : 213,399,779.88 = 85,022,919.28 : x
  2. Step 2: Convert to fraction form
    154,641,680.56/213,399,779.88 = 85,022,919.28/x
  3. Step 3: Cross multiply
    154,641,680.56x = 213,399,779.88 × 85,022,919.28
  4. Step 4: Simplify right side
    154,641,680.56x = 18,143,872,259,107,008
  5. Step 5: Solve for x
    x = 18,143,872,259,107,008/154,641,680.56
  6. Step 6: Final answer
    x = 117,328,473.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.