Home / 20,669,529.69-28,523,724.62-11,376,901.08

Finding the Fourth Proportional to 20,669,529.69, 28,523,724.62 and 11,376,901.08

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Solution

The fourth proportional to 20,669,529.69, 28,523,724.62 and 11,376,901.08 is: 15,699,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,529.69 : 28,523,724.62 = 11,376,901.08 : x
  2. Step 2: Convert to fraction form
    20,669,529.69/28,523,724.62 = 11,376,901.08/x
  3. Step 3: Cross multiply
    20,669,529.69x = 28,523,724.62 × 11,376,901.08
  4. Step 4: Simplify right side
    20,669,529.69x = 324,511,593,399,347.75
  5. Step 5: Solve for x
    x = 324,511,593,399,347.75/20,669,529.69
  6. Step 6: Final answer
    x = 15,699,998.90

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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.