Home / 20,734,574.40-31,079,743.20-7,950,139.20

Finding the Fourth Proportional to 20,734,574.40, 31,079,743.20 and 7,950,139.20

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Solution

The fourth proportional to 20,734,574.40, 31,079,743.20 and 7,950,139.20 is: 11,916,728.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,574.40 : 31,079,743.20 = 7,950,139.20 : x
  2. Step 2: Convert to fraction form
    20,734,574.40/31,079,743.20 = 7,950,139.20/x
  3. Step 3: Cross multiply
    20,734,574.40x = 31,079,743.20 × 7,950,139.20
  4. Step 4: Simplify right side
    20,734,574.40x = 247,088,284,740,253.44
  5. Step 5: Solve for x
    x = 247,088,284,740,253.44/20,734,574.40
  6. Step 6: Final answer
    x = 11,916,728.07

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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.