Home / 133,020,081.90-199,530,122.85-87,633,125.10

Finding the Fourth Proportional to 133,020,081.90, 199,530,122.85 and 87,633,125.10

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Solution

The fourth proportional to 133,020,081.90, 199,530,122.85 and 87,633,125.10 is: 131,449,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020,081.90 : 199,530,122.85 = 87,633,125.10 : x
  2. Step 2: Convert to fraction form
    133,020,081.90/199,530,122.85 = 87,633,125.10/x
  3. Step 3: Cross multiply
    133,020,081.90x = 199,530,122.85 × 87,633,125.10
  4. Step 4: Simplify right side
    133,020,081.90x = 17,485,448,216,932,416
  5. Step 5: Solve for x
    x = 17,485,448,216,932,416/133,020,081.90
  6. Step 6: Final answer
    x = 131,449,687.65

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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.