Home / 72,539,998.80-108,809,998.20-49,581,747.60

Finding the Fourth Proportional to 72,539,998.80, 108,809,998.20 and 49,581,747.60

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Solution

The fourth proportional to 72,539,998.80, 108,809,998.20 and 49,581,747.60 is: 74,372,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,539,998.80 : 108,809,998.20 = 49,581,747.60 : x
  2. Step 2: Convert to fraction form
    72,539,998.80/108,809,998.20 = 49,581,747.60/x
  3. Step 3: Cross multiply
    72,539,998.80x = 108,809,998.20 × 49,581,747.60
  4. Step 4: Simplify right side
    72,539,998.80x = 5,394,989,867,108,855
  5. Step 5: Solve for x
    x = 5,394,989,867,108,855/72,539,998.80
  6. Step 6: Final answer
    x = 74,372,621.40

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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.