Home / 22,520,716.16-31,079,928.62-12,732,071.48

Finding the Fourth Proportional to 22,520,716.16, 31,079,928.62 and 12,732,071.48

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Solution

The fourth proportional to 22,520,716.16, 31,079,928.62 and 12,732,071.48 is: 17,571,016.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520,716.16 : 31,079,928.62 = 12,732,071.48 : x
  2. Step 2: Convert to fraction form
    22,520,716.16/31,079,928.62 = 12,732,071.48/x
  3. Step 3: Cross multiply
    22,520,716.16x = 31,079,928.62 × 12,732,071.48
  4. Step 4: Simplify right side
    22,520,716.16x = 395,711,872,783,137.81
  5. Step 5: Solve for x
    x = 395,711,872,783,137.81/22,520,716.16
  6. Step 6: Final answer
    x = 17,571,016.39

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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.