Home / 51,781,122.36-77,651,490.24-19,415,388.60

Finding the Fourth Proportional to 51,781,122.36, 77,651,490.24 and 19,415,388.60

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Solution

The fourth proportional to 51,781,122.36, 77,651,490.24 and 19,415,388.60 is: 29,115,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,781,122.36 : 77,651,490.24 = 19,415,388.60 : x
  2. Step 2: Convert to fraction form
    51,781,122.36/77,651,490.24 = 19,415,388.60/x
  3. Step 3: Cross multiply
    51,781,122.36x = 77,651,490.24 × 19,415,388.60
  4. Step 4: Simplify right side
    51,781,122.36x = 1,507,633,858,378,707.25
  5. Step 5: Solve for x
    x = 1,507,633,858,378,707.25/51,781,122.36
  6. Step 6: Final answer
    x = 29,115,511.40

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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.