Home / 23,131,016.76-31,920,990.66-12,817,912.08

Finding the Fourth Proportional to 23,131,016.76, 31,920,990.66 and 12,817,912.08

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Solution

The fourth proportional to 23,131,016.76, 31,920,990.66 and 12,817,912.08 is: 17,688,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,131,016.76 : 31,920,990.66 = 12,817,912.08 : x
  2. Step 2: Convert to fraction form
    23,131,016.76/31,920,990.66 = 12,817,912.08/x
  3. Step 3: Cross multiply
    23,131,016.76x = 31,920,990.66 × 12,817,912.08
  4. Step 4: Simplify right side
    23,131,016.76x = 409,160,451,786,381.19
  5. Step 5: Solve for x
    x = 409,160,451,786,381.19/23,131,016.76
  6. Step 6: Final answer
    x = 17,688,822.59

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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.