Home / 72,692,138.20-109,091,351.40-48,422,999.20

Finding the Fourth Proportional to 72,692,138.20, 109,091,351.40 and 48,422,999.20

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Solution

The fourth proportional to 72,692,138.20, 109,091,351.40 and 48,422,999.20 is: 72,669,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,692,138.20 : 109,091,351.40 = 48,422,999.20 : x
  2. Step 2: Convert to fraction form
    72,692,138.20/109,091,351.40 = 48,422,999.20/x
  3. Step 3: Cross multiply
    72,692,138.20x = 109,091,351.40 × 48,422,999.20
  4. Step 4: Simplify right side
    72,692,138.20x = 5,282,530,421,569,119
  5. Step 5: Solve for x
    x = 5,282,530,421,569,119/72,692,138.20
  6. Step 6: Final answer
    x = 72,669,900.11

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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.