Home / 231,839,906.16-347,822,579.16-78,485,975.76

Finding the Fourth Proportional to 231,839,906.16, 347,822,579.16 and 78,485,975.76

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Solution

The fourth proportional to 231,839,906.16, 347,822,579.16 and 78,485,975.76 is: 117,750,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,839,906.16 : 347,822,579.16 = 78,485,975.76 : x
  2. Step 2: Convert to fraction form
    231,839,906.16/347,822,579.16 = 78,485,975.76/x
  3. Step 3: Cross multiply
    231,839,906.16x = 347,822,579.16 × 78,485,975.76
  4. Step 4: Simplify right side
    231,839,906.16x = 27,299,194,516,732,444
  5. Step 5: Solve for x
    x = 27,299,194,516,732,444/231,839,906.16
  6. Step 6: Final answer
    x = 117,750,196.54

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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.