Home / 154,946,978.56-213,824,246.64-85,338,836.38

Finding the Fourth Proportional to 154,946,978.56, 213,824,246.64 and 85,338,836.38

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Solution

The fourth proportional to 154,946,978.56, 213,824,246.64 and 85,338,836.38 is: 117,766,171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,946,978.56 : 213,824,246.64 = 85,338,836.38 : x
  2. Step 2: Convert to fraction form
    154,946,978.56/213,824,246.64 = 85,338,836.38/x
  3. Step 3: Cross multiply
    154,946,978.56x = 213,824,246.64 × 85,338,836.38
  4. Step 4: Simplify right side
    154,946,978.56x = 18,247,512,398,087,724
  5. Step 5: Solve for x
    x = 18,247,512,398,087,724/154,946,978.56
  6. Step 6: Final answer
    x = 117,766,171.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.