Home / 145,212,331.40-217,734,516.30-54,345,105.80

Finding the Fourth Proportional to 145,212,331.40, 217,734,516.30 and 54,345,105.80

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Solution

The fourth proportional to 145,212,331.40, 217,734,516.30 and 54,345,105.80 is: 81,486,229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,212,331.40 : 217,734,516.30 = 54,345,105.80 : x
  2. Step 2: Convert to fraction form
    145,212,331.40/217,734,516.30 = 54,345,105.80/x
  3. Step 3: Cross multiply
    145,212,331.40x = 217,734,516.30 × 54,345,105.80
  4. Step 4: Simplify right side
    145,212,331.40x = 11,832,805,324,635,324
  5. Step 5: Solve for x
    x = 11,832,805,324,635,324/145,212,331.40
  6. Step 6: Final answer
    x = 81,486,229.24

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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.