Home / 20,954,645.11-31,431,976.40-9,426,647.28

Finding the Fourth Proportional to 20,954,645.11, 31,431,976.40 and 9,426,647.28

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Solution

The fourth proportional to 20,954,645.11, 31,431,976.40 and 9,426,647.28 is: 14,139,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954,645.11 : 31,431,976.40 = 9,426,647.28 : x
  2. Step 2: Convert to fraction form
    20,954,645.11/31,431,976.40 = 9,426,647.28/x
  3. Step 3: Cross multiply
    20,954,645.11x = 31,431,976.40 × 9,426,647.28
  4. Step 4: Simplify right side
    20,954,645.11x = 296,298,154,836,084.19
  5. Step 5: Solve for x
    x = 296,298,154,836,084.19/20,954,645.11
  6. Step 6: Final answer
    x = 14,139,974.85

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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.