Home / 20,693,434.41-31,039,119.78-7,738,632.66

Finding the Fourth Proportional to 20,693,434.41, 31,039,119.78 and 7,738,632.66

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Solution

The fourth proportional to 20,693,434.41, 31,039,119.78 and 7,738,632.66 is: 11,607,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,434.41 : 31,039,119.78 = 7,738,632.66 : x
  2. Step 2: Convert to fraction form
    20,693,434.41/31,039,119.78 = 7,738,632.66/x
  3. Step 3: Cross multiply
    20,693,434.41x = 31,039,119.78 × 7,738,632.66
  4. Step 4: Simplify right side
    20,693,434.41x = 240,200,346,067,160.03
  5. Step 5: Solve for x
    x = 240,200,346,067,160.03/20,693,434.41
  6. Step 6: Final answer
    x = 11,607,563.12

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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.