Home / 20,282,338.69-27,989,724.84-10,989,906.30

Finding the Fourth Proportional to 20,282,338.69, 27,989,724.84 and 10,989,906.30

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Solution

The fourth proportional to 20,282,338.69, 27,989,724.84 and 10,989,906.30 is: 15,166,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282,338.69 : 27,989,724.84 = 10,989,906.30 : x
  2. Step 2: Convert to fraction form
    20,282,338.69/27,989,724.84 = 10,989,906.30/x
  3. Step 3: Cross multiply
    20,282,338.69x = 27,989,724.84 × 10,989,906.30
  4. Step 4: Simplify right side
    20,282,338.69x = 307,604,453,354,382.50
  5. Step 5: Solve for x
    x = 307,604,453,354,382.50/20,282,338.69
  6. Step 6: Final answer
    x = 15,166,123.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.