Home / 12,127,329,722.40-18,197,797,028.40-5,138,951,431.20

Finding the Fourth Proportional to 12,127,329,722.40, 18,197,797,028.40 and 5,138,951,431.20

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Solution

The fourth proportional to 12,127,329,722.40, 18,197,797,028.40 and 5,138,951,431.20 is: 7,711,309,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,329,722.40 : 18,197,797,028.40 = 5,138,951,431.20 : x
  2. Step 2: Convert to fraction form
    12,127,329,722.40/18,197,797,028.40 = 5,138,951,431.20/x
  3. Step 3: Cross multiply
    12,127,329,722.40x = 18,197,797,028.40 × 5,138,951,431.20
  4. Step 4: Simplify right side
    12,127,329,722.40x = 93,517,595,083,783,290,880
  5. Step 5: Solve for x
    x = 93,517,595,083,783,290,880/12,127,329,722.40
  6. Step 6: Final answer
    x = 7,711,309,680.24

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1.5x scale

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.