Home / 15,123,787.80-20,870,731.79-8,597,417.56

Finding the Fourth Proportional to 15,123,787.80, 20,870,731.79 and 8,597,417.56

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Solution

The fourth proportional to 15,123,787.80, 20,870,731.79 and 8,597,417.56 is: 11,864,382.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123,787.80 : 20,870,731.79 = 8,597,417.56 : x
  2. Step 2: Convert to fraction form
    15,123,787.80/20,870,731.79 = 8,597,417.56/x
  3. Step 3: Cross multiply
    15,123,787.80x = 20,870,731.79 × 8,597,417.56
  4. Step 4: Simplify right side
    15,123,787.80x = 179,434,395,918,472.62
  5. Step 5: Solve for x
    x = 179,434,395,918,472.62/15,123,787.80
  6. Step 6: Final answer
    x = 11,864,382.01

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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.