Home / 7,178,468.80-10,764,009.60-2,129,123.20

Finding the Fourth Proportional to 7,178,468.80, 10,764,009.60 and 2,129,123.20

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Solution

The fourth proportional to 7,178,468.80, 10,764,009.60 and 2,129,123.20 is: 3,192,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,468.80 : 10,764,009.60 = 2,129,123.20 : x
  2. Step 2: Convert to fraction form
    7,178,468.80/10,764,009.60 = 2,129,123.20/x
  3. Step 3: Cross multiply
    7,178,468.80x = 10,764,009.60 × 2,129,123.20
  4. Step 4: Simplify right side
    7,178,468.80x = 22,917,902,564,382.72
  5. Step 5: Solve for x
    x = 22,917,902,564,382.72/7,178,468.80
  6. Step 6: Final answer
    x = 3,192,589.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.