Home / 31,328,119.86-43,235,541.09-18,279,582.54

Finding the Fourth Proportional to 31,328,119.86, 43,235,541.09 and 18,279,582.54

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Solution

The fourth proportional to 31,328,119.86, 43,235,541.09 and 18,279,582.54 is: 25,227,420.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328,119.86 : 43,235,541.09 = 18,279,582.54 : x
  2. Step 2: Convert to fraction form
    31,328,119.86/43,235,541.09 = 18,279,582.54/x
  3. Step 3: Cross multiply
    31,328,119.86x = 43,235,541.09 × 18,279,582.54
  4. Step 4: Simplify right side
    31,328,119.86x = 790,327,642,016,216.62
  5. Step 5: Solve for x
    x = 790,327,642,016,216.62/31,328,119.86
  6. Step 6: Final answer
    x = 25,227,420.14

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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.