Home / 145,212,336.40-217,734,523.80-54,345,110.80

Finding the Fourth Proportional to 145,212,336.40, 217,734,523.80 and 54,345,110.80

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Solution

The fourth proportional to 145,212,336.40, 217,734,523.80 and 54,345,110.80 is: 81,486,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,212,336.40 : 217,734,523.80 = 54,345,110.80 : x
  2. Step 2: Convert to fraction form
    145,212,336.40/217,734,523.80 = 54,345,110.80/x
  3. Step 3: Cross multiply
    145,212,336.40x = 217,734,523.80 × 54,345,110.80
  4. Step 4: Simplify right side
    145,212,336.40x = 11,832,806,820,896,238
  5. Step 5: Solve for x
    x = 11,832,806,820,896,238/145,212,336.40
  6. Step 6: Final answer
    x = 81,486,236.74

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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.