Home / 71,057,999.20-106,586,998.80-66,753,327.10

Finding the Fourth Proportional to 71,057,999.20, 106,586,998.80 and 66,753,327.10

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Solution

The fourth proportional to 71,057,999.20, 106,586,998.80 and 66,753,327.10 is: 100,129,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,057,999.20 : 106,586,998.80 = 66,753,327.10 : x
  2. Step 2: Convert to fraction form
    71,057,999.20/106,586,998.80 = 66,753,327.10/x
  3. Step 3: Cross multiply
    71,057,999.20x = 106,586,998.80 × 66,753,327.10
  4. Step 4: Simplify right side
    71,057,999.20x = 7,115,036,795,503,707
  5. Step 5: Solve for x
    x = 7,115,036,795,503,707/71,057,999.20
  6. Step 6: Final answer
    x = 100,129,990.65

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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.