Home / 20,916,621.92-31,374,957.52-6,539,765.60

Finding the Fourth Proportional to 20,916,621.92, 31,374,957.52 and 6,539,765.60

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Solution

The fourth proportional to 20,916,621.92, 31,374,957.52 and 6,539,765.60 is: 9,809,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916,621.92 : 31,374,957.52 = 6,539,765.60 : x
  2. Step 2: Convert to fraction form
    20,916,621.92/31,374,957.52 = 6,539,765.60/x
  3. Step 3: Cross multiply
    20,916,621.92x = 31,374,957.52 × 6,539,765.60
  4. Step 4: Simplify right side
    20,916,621.92x = 205,184,867,890,757.31
  5. Step 5: Solve for x
    x = 205,184,867,890,757.31/20,916,621.92
  6. Step 6: Final answer
    x = 9,809,656.10

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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.