Home / 55,007,631.75-75,912,893.78-30,561,345.75

Finding the Fourth Proportional to 55,007,631.75, 75,912,893.78 and 30,561,345.75

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Solution

The fourth proportional to 55,007,631.75, 75,912,893.78 and 30,561,345.75 is: 42,175,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,007,631.75 : 75,912,893.78 = 30,561,345.75 : x
  2. Step 2: Convert to fraction form
    55,007,631.75/75,912,893.78 = 30,561,345.75/x
  3. Step 3: Cross multiply
    55,007,631.75x = 75,912,893.78 × 30,561,345.75
  4. Step 4: Simplify right side
    55,007,631.75x = 2,320,000,193,540,798
  5. Step 5: Solve for x
    x = 2,320,000,193,540,798/55,007,631.75
  6. Step 6: Final answer
    x = 42,175,969.40

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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.