Home / 31,322,682.36-43,243,833.78-19,730,182.68

Finding the Fourth Proportional to 31,322,682.36, 43,243,833.78 and 19,730,182.68

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Solution

The fourth proportional to 31,322,682.36, 43,243,833.78 and 19,730,182.68 is: 27,239,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,322,682.36 : 43,243,833.78 = 19,730,182.68 : x
  2. Step 2: Convert to fraction form
    31,322,682.36/43,243,833.78 = 19,730,182.68/x
  3. Step 3: Cross multiply
    31,322,682.36x = 43,243,833.78 × 19,730,182.68
  4. Step 4: Simplify right side
    31,322,682.36x = 853,208,740,262,955
  5. Step 5: Solve for x
    x = 853,208,740,262,955/31,322,682.36
  6. Step 6: Final answer
    x = 27,239,325.50

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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.