Home / 121,383,040.28-167,521,576.84-74,371,312.70

Finding the Fourth Proportional to 121,383,040.28, 167,521,576.84 and 74,371,312.70

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Solution

The fourth proportional to 121,383,040.28, 167,521,576.84 and 74,371,312.70 is: 102,640,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,383,040.28 : 167,521,576.84 = 74,371,312.70 : x
  2. Step 2: Convert to fraction form
    121,383,040.28/167,521,576.84 = 74,371,312.70/x
  3. Step 3: Cross multiply
    121,383,040.28x = 167,521,576.84 × 74,371,312.70
  4. Step 4: Simplify right side
    121,383,040.28x = 12,458,799,575,164,718
  5. Step 5: Solve for x
    x = 12,458,799,575,164,718/121,383,040.28
  6. Step 6: Final answer
    x = 102,640,365.13

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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.