Home / 19,341,108.80-29,018,805.60-7,982,542.40

Finding the Fourth Proportional to 19,341,108.80, 29,018,805.60 and 7,982,542.40

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Solution

The fourth proportional to 19,341,108.80, 29,018,805.60 and 7,982,542.40 is: 11,976,761.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,341,108.80 : 29,018,805.60 = 7,982,542.40 : x
  2. Step 2: Convert to fraction form
    19,341,108.80/29,018,805.60 = 7,982,542.40/x
  3. Step 3: Cross multiply
    19,341,108.80x = 29,018,805.60 × 7,982,542.40
  4. Step 4: Simplify right side
    19,341,108.80x = 231,643,846,099,357.47
  5. Step 5: Solve for x
    x = 231,643,846,099,357.47/19,341,108.80
  6. Step 6: Final answer
    x = 11,976,761.44

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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.