Home / 12,638,135.67-18,957,743.01-4,963,443.78

Finding the Fourth Proportional to 12,638,135.67, 18,957,743.01 and 4,963,443.78

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Solution

The fourth proportional to 12,638,135.67, 18,957,743.01 and 4,963,443.78 is: 7,445,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638,135.67 : 18,957,743.01 = 4,963,443.78 : x
  2. Step 2: Convert to fraction form
    12,638,135.67/18,957,743.01 = 4,963,443.78/x
  3. Step 3: Cross multiply
    12,638,135.67x = 18,957,743.01 × 4,963,443.78
  4. Step 4: Simplify right side
    12,638,135.67x = 94,095,691,696,914.53
  5. Step 5: Solve for x
    x = 94,095,691,696,914.53/12,638,135.67
  6. Step 6: Final answer
    x = 7,445,377.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.