Home / 21,062,351.70-31,593,527.55-13,881,993.30

Finding the Fourth Proportional to 21,062,351.70, 31,593,527.55 and 13,881,993.30

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Solution

The fourth proportional to 21,062,351.70, 31,593,527.55 and 13,881,993.30 is: 20,822,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,351.70 : 31,593,527.55 = 13,881,993.30 : x
  2. Step 2: Convert to fraction form
    21,062,351.70/31,593,527.55 = 13,881,993.30/x
  3. Step 3: Cross multiply
    21,062,351.70x = 31,593,527.55 × 13,881,993.30
  4. Step 4: Simplify right side
    21,062,351.70x = 438,581,137,772,465.44
  5. Step 5: Solve for x
    x = 438,581,137,772,465.44/21,062,351.70
  6. Step 6: Final answer
    x = 20,822,989.95

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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.