Home / 22,571,778.06-31,151,712.86-13,404,420.81

Finding the Fourth Proportional to 22,571,778.06, 31,151,712.86 and 13,404,420.81

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Solution

The fourth proportional to 22,571,778.06, 31,151,712.86 and 13,404,420.81 is: 18,499,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,571,778.06 : 31,151,712.86 = 13,404,420.81 : x
  2. Step 2: Convert to fraction form
    22,571,778.06/31,151,712.86 = 13,404,420.81/x
  3. Step 3: Cross multiply
    22,571,778.06x = 31,151,712.86 × 13,404,420.81
  4. Step 4: Simplify right side
    22,571,778.06x = 417,570,668,127,728.62
  5. Step 5: Solve for x
    x = 417,570,668,127,728.62/22,571,778.06
  6. Step 6: Final answer
    x = 18,499,679.87

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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.