Home / 90,891,784.72-136,340,476.44-39,747,477.52

Finding the Fourth Proportional to 90,891,784.72, 136,340,476.44 and 39,747,477.52

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Solution

The fourth proportional to 90,891,784.72, 136,340,476.44 and 39,747,477.52 is: 59,622,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,891,784.72 : 136,340,476.44 = 39,747,477.52 : x
  2. Step 2: Convert to fraction form
    90,891,784.72/136,340,476.44 = 39,747,477.52/x
  3. Step 3: Cross multiply
    90,891,784.72x = 136,340,476.44 × 39,747,477.52
  4. Step 4: Simplify right side
    90,891,784.72x = 5,419,190,022,364,990
  5. Step 5: Solve for x
    x = 5,419,190,022,364,990/90,891,784.72
  6. Step 6: Final answer
    x = 59,622,440.46

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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.