Home / 28,188,216.45-42,282,324.68-9,019,598.85

Finding the Fourth Proportional to 28,188,216.45, 42,282,324.68 and 9,019,598.85

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Solution

The fourth proportional to 28,188,216.45, 42,282,324.68 and 9,019,598.85 is: 13,529,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,216.45 : 42,282,324.68 = 9,019,598.85 : x
  2. Step 2: Convert to fraction form
    28,188,216.45/42,282,324.68 = 9,019,598.85/x
  3. Step 3: Cross multiply
    28,188,216.45x = 42,282,324.68 × 9,019,598.85
  4. Step 4: Simplify right side
    28,188,216.45x = 381,369,607,013,956.56
  5. Step 5: Solve for x
    x = 381,369,607,013,956.56/28,188,216.45
  6. Step 6: Final answer
    x = 13,529,398.28

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Similar ratio
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1.5x scale

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.