Home / 228,961,251.20-343,441,876.80-137,128,246.40

Finding the Fourth Proportional to 228,961,251.20, 343,441,876.80 and 137,128,246.40

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Solution

The fourth proportional to 228,961,251.20, 343,441,876.80 and 137,128,246.40 is: 205,692,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,961,251.20 : 343,441,876.80 = 137,128,246.40 : x
  2. Step 2: Convert to fraction form
    228,961,251.20/343,441,876.80 = 137,128,246.40/x
  3. Step 3: Cross multiply
    228,961,251.20x = 343,441,876.80 × 137,128,246.40
  4. Step 4: Simplify right side
    228,961,251.20x = 47,095,582,305,908,848
  5. Step 5: Solve for x
    x = 47,095,582,305,908,848/228,961,251.20
  6. Step 6: Final answer
    x = 205,692,369.60

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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.