Home / 154,675,810.56-213,458,096.16-85,066,579.20

Finding the Fourth Proportional to 154,675,810.56, 213,458,096.16 and 85,066,579.20

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Solution

The fourth proportional to 154,675,810.56, 213,458,096.16 and 85,066,579.20 is: 117,394,891.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,675,810.56 : 213,458,096.16 = 85,066,579.20 : x
  2. Step 2: Convert to fraction form
    154,675,810.56/213,458,096.16 = 85,066,579.20/x
  3. Step 3: Cross multiply
    154,675,810.56x = 213,458,096.16 × 85,066,579.20
  4. Step 4: Simplify right side
    154,675,810.56x = 18,158,150,042,875,856
  5. Step 5: Solve for x
    x = 18,158,150,042,875,856/154,675,810.56
  6. Step 6: Final answer
    x = 117,394,891.79

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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.