Home / 22,629,981.92-31,228,451.84-12,840,215.36

Finding the Fourth Proportional to 22,629,981.92, 31,228,451.84 and 12,840,215.36

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Solution

The fourth proportional to 22,629,981.92, 31,228,451.84 and 12,840,215.36 is: 17,718,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,629,981.92 : 31,228,451.84 = 12,840,215.36 : x
  2. Step 2: Convert to fraction form
    22,629,981.92/31,228,451.84 = 12,840,215.36/x
  3. Step 3: Cross multiply
    22,629,981.92x = 31,228,451.84 × 12,840,215.36
  4. Step 4: Simplify right side
    22,629,981.92x = 400,980,046,984,988.25
  5. Step 5: Solve for x
    x = 400,980,046,984,988.25/22,629,981.92
  6. Step 6: Final answer
    x = 17,718,973.37

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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.