Home / 31,616,040.16-43,616,775.36-21,165,423.28

Finding the Fourth Proportional to 31,616,040.16, 43,616,775.36 and 21,165,423.28

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Solution

The fourth proportional to 31,616,040.16, 43,616,775.36 and 21,165,423.28 is: 29,199,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616,040.16 : 43,616,775.36 = 21,165,423.28 : x
  2. Step 2: Convert to fraction form
    31,616,040.16/43,616,775.36 = 21,165,423.28/x
  3. Step 3: Cross multiply
    31,616,040.16x = 43,616,775.36 × 21,165,423.28
  4. Step 4: Simplify right side
    31,616,040.16x = 923,167,512,603,074.38
  5. Step 5: Solve for x
    x = 923,167,512,603,074.38/31,616,040.16
  6. Step 6: Final answer
    x = 29,199,340.21

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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.