Home / 78,374,583.41-108,143,851.65-43,562,540.70

Finding the Fourth Proportional to 78,374,583.41, 108,143,851.65 and 43,562,540.70

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Solution

The fourth proportional to 78,374,583.41, 108,143,851.65 and 43,562,540.70 is: 60,109,039.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,374,583.41 : 108,143,851.65 = 43,562,540.70 : x
  2. Step 2: Convert to fraction form
    78,374,583.41/108,143,851.65 = 43,562,540.70/x
  3. Step 3: Cross multiply
    78,374,583.41x = 108,143,851.65 × 43,562,540.70
  4. Step 4: Simplify right side
    78,374,583.41x = 4,711,020,938,957,888
  5. Step 5: Solve for x
    x = 4,711,020,938,957,888/78,374,583.41
  6. Step 6: Final answer
    x = 60,109,039.61

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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.