Home / 140,078,557.20-210,149,328.60-82,541,211.60

Finding the Fourth Proportional to 140,078,557.20, 210,149,328.60 and 82,541,211.60

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Solution

The fourth proportional to 140,078,557.20, 210,149,328.60 and 82,541,211.60 is: 123,830,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,078,557.20 : 210,149,328.60 = 82,541,211.60 : x
  2. Step 2: Convert to fraction form
    140,078,557.20/210,149,328.60 = 82,541,211.60/x
  3. Step 3: Cross multiply
    140,078,557.20x = 210,149,328.60 × 82,541,211.60
  4. Step 4: Simplify right side
    140,078,557.20x = 17,345,980,199,570,530
  5. Step 5: Solve for x
    x = 17,345,980,199,570,530/140,078,557.20
  6. Step 6: Final answer
    x = 123,830,374.51

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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.