Home / 228,351,378.28-315,124,901.76-123,929,449.60

Finding the Fourth Proportional to 228,351,378.28, 315,124,901.76 and 123,929,449.60

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Solution

The fourth proportional to 228,351,378.28, 315,124,901.76 and 123,929,449.60 is: 171,022,640.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,351,378.28 : 315,124,901.76 = 123,929,449.60 : x
  2. Step 2: Convert to fraction form
    228,351,378.28/315,124,901.76 = 123,929,449.60/x
  3. Step 3: Cross multiply
    228,351,378.28x = 315,124,901.76 × 123,929,449.60
  4. Step 4: Simplify right side
    228,351,378.28x = 39,053,255,630,370,872
  5. Step 5: Solve for x
    x = 39,053,255,630,370,872/228,351,378.28
  6. Step 6: Final answer
    x = 171,022,640.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.