Home / 71,057,999.70-106,586,999.55-66,753,327.60

Finding the Fourth Proportional to 71,057,999.70, 106,586,999.55 and 66,753,327.60

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Solution

The fourth proportional to 71,057,999.70, 106,586,999.55 and 66,753,327.60 is: 100,129,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,057,999.70 : 106,586,999.55 = 66,753,327.60 : x
  2. Step 2: Convert to fraction form
    71,057,999.70/106,586,999.55 = 66,753,327.60/x
  3. Step 3: Cross multiply
    71,057,999.70x = 106,586,999.55 × 66,753,327.60
  4. Step 4: Simplify right side
    71,057,999.70x = 7,115,036,898,862,203
  5. Step 5: Solve for x
    x = 7,115,036,898,862,203/71,057,999.70
  6. Step 6: Final answer
    x = 100,129,991.40

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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.