Home / 21,102,650.80-31,653,976.20-17,701,428.40

Finding the Fourth Proportional to 21,102,650.80, 31,653,976.20 and 17,701,428.40

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Solution

The fourth proportional to 21,102,650.80, 31,653,976.20 and 17,701,428.40 is: 26,552,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102,650.80 : 31,653,976.20 = 17,701,428.40 : x
  2. Step 2: Convert to fraction form
    21,102,650.80/31,653,976.20 = 17,701,428.40/x
  3. Step 3: Cross multiply
    21,102,650.80x = 31,653,976.20 × 17,701,428.40
  4. Step 4: Simplify right side
    21,102,650.80x = 560,320,593,279,604
  5. Step 5: Solve for x
    x = 560,320,593,279,604/21,102,650.80
  6. Step 6: Final answer
    x = 26,552,142.60

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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.