Home / 20,160,665.70-30,240,998.55-7,376,921.70

Finding the Fourth Proportional to 20,160,665.70, 30,240,998.55 and 7,376,921.70

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Solution

The fourth proportional to 20,160,665.70, 30,240,998.55 and 7,376,921.70 is: 11,065,382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,665.70 : 30,240,998.55 = 7,376,921.70 : x
  2. Step 2: Convert to fraction form
    20,160,665.70/30,240,998.55 = 7,376,921.70/x
  3. Step 3: Cross multiply
    20,160,665.70x = 30,240,998.55 × 7,376,921.70
  4. Step 4: Simplify right side
    20,160,665.70x = 223,085,478,433,163.53
  5. Step 5: Solve for x
    x = 223,085,478,433,163.53/20,160,665.70
  6. Step 6: Final answer
    x = 11,065,382.55

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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.