Home / 639,077,540.80-957,954,962.40-347,328,241.60

Finding the Fourth Proportional to 639,077,540.80, 957,954,962.40 and 347,328,241.60

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Solution

The fourth proportional to 639,077,540.80, 957,954,962.40 and 347,328,241.60 is: 520,632,930.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,077,540.80 : 957,954,962.40 = 347,328,241.60 : x
  2. Step 2: Convert to fraction form
    639,077,540.80/957,954,962.40 = 347,328,241.60/x
  3. Step 3: Cross multiply
    639,077,540.80x = 957,954,962.40 × 347,328,241.60
  4. Step 4: Simplify right side
    639,077,540.80x = 332,724,812,622,386,112
  5. Step 5: Solve for x
    x = 332,724,812,622,386,112/639,077,540.80
  6. Step 6: Final answer
    x = 520,632,930.09

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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.