Home / 21,456,029.80-32,171,603.10-7,994,218.60

Finding the Fourth Proportional to 21,456,029.80, 32,171,603.10 and 7,994,218.60

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Solution

The fourth proportional to 21,456,029.80, 32,171,603.10 and 7,994,218.60 is: 11,986,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,029.80 : 32,171,603.10 = 7,994,218.60 : x
  2. Step 2: Convert to fraction form
    21,456,029.80/32,171,603.10 = 7,994,218.60/x
  3. Step 3: Cross multiply
    21,456,029.80x = 32,171,603.10 × 7,994,218.60
  4. Step 4: Simplify right side
    21,456,029.80x = 257,186,827,893,837.66
  5. Step 5: Solve for x
    x = 257,186,827,893,837.66/21,456,029.80
  6. Step 6: Final answer
    x = 11,986,692.33

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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.