Home / 31,322,681.36-43,243,832.40-19,730,181.68

Finding the Fourth Proportional to 31,322,681.36, 43,243,832.40 and 19,730,181.68

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Solution

The fourth proportional to 31,322,681.36, 43,243,832.40 and 19,730,181.68 is: 27,239,324.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,322,681.36 : 43,243,832.40 = 19,730,181.68 : x
  2. Step 2: Convert to fraction form
    31,322,681.36/43,243,832.40 = 19,730,181.68/x
  3. Step 3: Cross multiply
    31,322,681.36x = 43,243,832.40 × 19,730,181.68
  4. Step 4: Simplify right side
    31,322,681.36x = 853,208,669,791,470.38
  5. Step 5: Solve for x
    x = 853,208,669,791,470.38/31,322,681.36
  6. Step 6: Final answer
    x = 27,239,324.12

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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.