Home / 78,587,010.10-107,664,594.09-75,641,609.08

Finding the Fourth Proportional to 78,587,010.10, 107,664,594.09 and 75,641,609.08

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Solution

The fourth proportional to 78,587,010.10, 107,664,594.09 and 75,641,609.08 is: 103,629,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,587,010.10 : 107,664,594.09 = 75,641,609.08 : x
  2. Step 2: Convert to fraction form
    78,587,010.10/107,664,594.09 = 75,641,609.08/x
  3. Step 3: Cross multiply
    78,587,010.10x = 107,664,594.09 × 75,641,609.08
  4. Step 4: Simplify right side
    78,587,010.10x = 8,143,923,137,317,251
  5. Step 5: Solve for x
    x = 8,143,923,137,317,251/78,587,010.10
  6. Step 6: Final answer
    x = 103,629,380.06

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.