Home / 20,282,926.84-27,989,397.62-11,579,399.35

Finding the Fourth Proportional to 20,282,926.84, 27,989,397.62 and 11,579,399.35

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Solution

The fourth proportional to 20,282,926.84, 27,989,397.62 and 11,579,399.35 is: 15,978,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282,926.84 : 27,989,397.62 = 11,579,399.35 : x
  2. Step 2: Convert to fraction form
    20,282,926.84/27,989,397.62 = 11,579,399.35/x
  3. Step 3: Cross multiply
    20,282,926.84x = 27,989,397.62 × 11,579,399.35
  4. Step 4: Simplify right side
    20,282,926.84x = 324,100,412,523,471.81
  5. Step 5: Solve for x
    x = 324,100,412,523,471.81/20,282,926.84
  6. Step 6: Final answer
    x = 15,978,976.56

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1.5x scale

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.