Home / 18,726,035.80-28,047,063.30-15,366,803.80

Finding the Fourth Proportional to 18,726,035.80, 28,047,063.30 and 15,366,803.80

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Solution

The fourth proportional to 18,726,035.80, 28,047,063.30 and 15,366,803.80 is: 23,015,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726,035.80 : 28,047,063.30 = 15,366,803.80 : x
  2. Step 2: Convert to fraction form
    18,726,035.80/28,047,063.30 = 15,366,803.80/x
  3. Step 3: Cross multiply
    18,726,035.80x = 28,047,063.30 × 15,366,803.80
  4. Step 4: Simplify right side
    18,726,035.80x = 430,993,718,897,280.56
  5. Step 5: Solve for x
    x = 430,993,718,897,280.56/18,726,035.80
  6. Step 6: Final answer
    x = 23,015,747.89

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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.