Home / 45,135,285.39-67,655,679.80-18,889,159.61

Finding the Fourth Proportional to 45,135,285.39, 67,655,679.80 and 18,889,159.61

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Solution

The fourth proportional to 45,135,285.39, 67,655,679.80 and 18,889,159.61 is: 28,313,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,135,285.39 : 67,655,679.80 = 18,889,159.61 : x
  2. Step 2: Convert to fraction form
    45,135,285.39/67,655,679.80 = 18,889,159.61/x
  3. Step 3: Cross multiply
    45,135,285.39x = 67,655,679.80 × 18,889,159.61
  4. Step 4: Simplify right side
    45,135,285.39x = 1,277,958,934,481,615
  5. Step 5: Solve for x
    x = 1,277,958,934,481,615/45,135,285.39
  6. Step 6: Final answer
    x = 28,313,965.97

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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.