Home / 21,542,460.80-32,297,620.80-13,021,001.60

Finding the Fourth Proportional to 21,542,460.80, 32,297,620.80 and 13,021,001.60

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Solution

The fourth proportional to 21,542,460.80, 32,297,620.80 and 13,021,001.60 is: 19,521,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542,460.80 : 32,297,620.80 = 13,021,001.60 : x
  2. Step 2: Convert to fraction form
    21,542,460.80/32,297,620.80 = 13,021,001.60/x
  3. Step 3: Cross multiply
    21,542,460.80x = 32,297,620.80 × 13,021,001.60
  4. Step 4: Simplify right side
    21,542,460.80x = 420,547,372,112,993.25
  5. Step 5: Solve for x
    x = 420,547,372,112,993.25/21,542,460.80
  6. Step 6: Final answer
    x = 19,521,788.90

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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.