Home / 212,458,250.25-318,335,056.63-129,208,194.11

Finding the Fourth Proportional to 212,458,250.25, 318,335,056.63 and 129,208,194.11

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Solution

The fourth proportional to 212,458,250.25, 318,335,056.63 and 129,208,194.11 is: 193,598,025.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,458,250.25 : 318,335,056.63 = 129,208,194.11 : x
  2. Step 2: Convert to fraction form
    212,458,250.25/318,335,056.63 = 129,208,194.11/x
  3. Step 3: Cross multiply
    212,458,250.25x = 318,335,056.63 × 129,208,194.11
  4. Step 4: Simplify right side
    212,458,250.25x = 41,131,497,789,539,696
  5. Step 5: Solve for x
    x = 41,131,497,789,539,696/212,458,250.25
  6. Step 6: Final answer
    x = 193,598,025.69

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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.