Home / 18,711,197.70-28,045,801.35-10,628,045.70

Finding the Fourth Proportional to 18,711,197.70, 28,045,801.35 and 10,628,045.70

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Solution

The fourth proportional to 18,711,197.70, 28,045,801.35 and 10,628,045.70 is: 15,930,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,197.70 : 28,045,801.35 = 10,628,045.70 : x
  2. Step 2: Convert to fraction form
    18,711,197.70/28,045,801.35 = 10,628,045.70/x
  3. Step 3: Cross multiply
    18,711,197.70x = 28,045,801.35 × 10,628,045.70
  4. Step 4: Simplify right side
    18,711,197.70x = 298,072,058,440,921.69
  5. Step 5: Solve for x
    x = 298,072,058,440,921.69/18,711,197.70
  6. Step 6: Final answer
    x = 15,930,143.18

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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.