Home / 54,198,120.60-81,270,280.80-19,653,143.40

Finding the Fourth Proportional to 54,198,120.60, 81,270,280.80 and 19,653,143.40

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Solution

The fourth proportional to 54,198,120.60, 81,270,280.80 and 19,653,143.40 is: 29,469,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,198,120.60 : 81,270,280.80 = 19,653,143.40 : x
  2. Step 2: Convert to fraction form
    54,198,120.60/81,270,280.80 = 19,653,143.40/x
  3. Step 3: Cross multiply
    54,198,120.60x = 81,270,280.80 × 19,653,143.40
  4. Step 4: Simplify right side
    54,198,120.60x = 1,597,216,482,720,666.50
  5. Step 5: Solve for x
    x = 1,597,216,482,720,666.50/54,198,120.60
  6. Step 6: Final answer
    x = 29,469,960.67

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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.