Home / 21,097,958.40-31,646,937.60-19,145,404.80

Finding the Fourth Proportional to 21,097,958.40, 31,646,937.60 and 19,145,404.80

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Solution

The fourth proportional to 21,097,958.40, 31,646,937.60 and 19,145,404.80 is: 28,718,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097,958.40 : 31,646,937.60 = 19,145,404.80 : x
  2. Step 2: Convert to fraction form
    21,097,958.40/31,646,937.60 = 19,145,404.80/x
  3. Step 3: Cross multiply
    21,097,958.40x = 31,646,937.60 × 19,145,404.80
  4. Step 4: Simplify right side
    21,097,958.40x = 605,893,431,032,340.50
  5. Step 5: Solve for x
    x = 605,893,431,032,340.50/21,097,958.40
  6. Step 6: Final answer
    x = 28,718,107.20

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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.