Home / 20,257,375.56-30,386,141.21-4,904,639.65

Finding the Fourth Proportional to 20,257,375.56, 30,386,141.21 and 4,904,639.65

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Solution

The fourth proportional to 20,257,375.56, 30,386,141.21 and 4,904,639.65 is: 7,356,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257,375.56 : 30,386,141.21 = 4,904,639.65 : x
  2. Step 2: Convert to fraction form
    20,257,375.56/30,386,141.21 = 4,904,639.65/x
  3. Step 3: Cross multiply
    20,257,375.56x = 30,386,141.21 × 4,904,639.65
  4. Step 4: Simplify right side
    20,257,375.56x = 149,033,072,989,065
  5. Step 5: Solve for x
    x = 149,033,072,989,065/20,257,375.56
  6. Step 6: Final answer
    x = 7,356,978.33

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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.