Home / 31,483,589.76-43,458,223.68-18,435,042.72

Finding the Fourth Proportional to 31,483,589.76, 43,458,223.68 and 18,435,042.72

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Solution

The fourth proportional to 31,483,589.76, 43,458,223.68 and 18,435,042.72 is: 25,446,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,483,589.76 : 43,458,223.68 = 18,435,042.72 : x
  2. Step 2: Convert to fraction form
    31,483,589.76/43,458,223.68 = 18,435,042.72/x
  3. Step 3: Cross multiply
    31,483,589.76x = 43,458,223.68 × 18,435,042.72
  4. Step 4: Simplify right side
    31,483,589.76x = 801,154,210,076,115.50
  5. Step 5: Solve for x
    x = 801,154,210,076,115.50/31,483,589.76
  6. Step 6: Final answer
    x = 25,446,723.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.