Home / 21,954,338.69-30,296,957.70-12,165,416.90

Finding the Fourth Proportional to 21,954,338.69, 30,296,957.70 and 12,165,416.90

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Solution

The fourth proportional to 21,954,338.69, 30,296,957.70 and 12,165,416.90 is: 16,788,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954,338.69 : 30,296,957.70 = 12,165,416.90 : x
  2. Step 2: Convert to fraction form
    21,954,338.69/30,296,957.70 = 12,165,416.90/x
  3. Step 3: Cross multiply
    21,954,338.69x = 30,296,957.70 × 12,165,416.90
  4. Step 4: Simplify right side
    21,954,338.69x = 368,575,121,070,680.31
  5. Step 5: Solve for x
    x = 368,575,121,070,680.31/21,954,338.69
  6. Step 6: Final answer
    x = 16,788,258.87

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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.