Home / 31,176,441.90-43,014,040.51-21,756,982.33

Finding the Fourth Proportional to 31,176,441.90, 43,014,040.51 and 21,756,982.33

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Solution

The fourth proportional to 31,176,441.90, 43,014,040.51 and 21,756,982.33 is: 30,018,041.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,176,441.90 : 43,014,040.51 = 21,756,982.33 : x
  2. Step 2: Convert to fraction form
    31,176,441.90/43,014,040.51 = 21,756,982.33/x
  3. Step 3: Cross multiply
    31,176,441.90x = 43,014,040.51 × 21,756,982.33
  4. Step 4: Simplify right side
    31,176,441.90x = 935,855,719,317,974.12
  5. Step 5: Solve for x
    x = 935,855,719,317,974.12/31,176,441.90
  6. Step 6: Final answer
    x = 30,018,041.26

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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.