Home / 20,816,871.84-28,723,505.04-11,994,948

Finding the Fourth Proportional to 20,816,871.84, 28,723,505.04 and 11,994,948

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Solution

The fourth proportional to 20,816,871.84, 28,723,505.04 and 11,994,948 is: 16,550,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816,871.84 : 28,723,505.04 = 11,994,948 : x
  2. Step 2: Convert to fraction form
    20,816,871.84/28,723,505.04 = 11,994,948/x
  3. Step 3: Cross multiply
    20,816,871.84x = 28,723,505.04 × 11,994,948
  4. Step 4: Simplify right side
    20,816,871.84x = 344,536,949,332,537.94
  5. Step 5: Solve for x
    x = 344,536,949,332,537.94/20,816,871.84
  6. Step 6: Final answer
    x = 16,550,851.25

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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.