Home / 81,153,480.42-121,770,140.67-38,015,226.18

Finding the Fourth Proportional to 81,153,480.42, 121,770,140.67 and 38,015,226.18

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Solution

The fourth proportional to 81,153,480.42, 121,770,140.67 and 38,015,226.18 is: 57,041,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,153,480.42 : 121,770,140.67 = 38,015,226.18 : x
  2. Step 2: Convert to fraction form
    81,153,480.42/121,770,140.67 = 38,015,226.18/x
  3. Step 3: Cross multiply
    81,153,480.42x = 121,770,140.67 × 38,015,226.18
  4. Step 4: Simplify right side
    81,153,480.42x = 4,629,119,439,540,467
  5. Step 5: Solve for x
    x = 4,629,119,439,540,467/81,153,480.42
  6. Step 6: Final answer
    x = 57,041,539.26

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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.