Home / 135,215,999.10-202,823,998.65-81,468,287.10

Finding the Fourth Proportional to 135,215,999.10, 202,823,998.65 and 81,468,287.10

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Solution

The fourth proportional to 135,215,999.10, 202,823,998.65 and 81,468,287.10 is: 122,202,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,215,999.10 : 202,823,998.65 = 81,468,287.10 : x
  2. Step 2: Convert to fraction form
    135,215,999.10/202,823,998.65 = 81,468,287.10/x
  3. Step 3: Cross multiply
    135,215,999.10x = 202,823,998.65 × 81,468,287.10
  4. Step 4: Simplify right side
    135,215,999.10x = 16,523,723,752,788,212
  5. Step 5: Solve for x
    x = 16,523,723,752,788,212/135,215,999.10
  6. Step 6: Final answer
    x = 122,202,430.65

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1.5x scale

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.