Home / 203,437,740.78-305,127,866.43-65,245,388.22

Finding the Fourth Proportional to 203,437,740.78, 305,127,866.43 and 65,245,388.22

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Solution

The fourth proportional to 203,437,740.78, 305,127,866.43 and 65,245,388.22 is: 97,858,863.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,437,740.78 : 305,127,866.43 = 65,245,388.22 : x
  2. Step 2: Convert to fraction form
    203,437,740.78/305,127,866.43 = 65,245,388.22/x
  3. Step 3: Cross multiply
    203,437,740.78x = 305,127,866.43 × 65,245,388.22
  4. Step 4: Simplify right side
    203,437,740.78x = 19,908,186,101,965,656
  5. Step 5: Solve for x
    x = 19,908,186,101,965,656/203,437,740.78
  6. Step 6: Final answer
    x = 97,858,863.48

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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.