Home / 21,542,467.80-32,297,631.30-13,021,008.60

Finding the Fourth Proportional to 21,542,467.80, 32,297,631.30 and 13,021,008.60

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Solution

The fourth proportional to 21,542,467.80, 32,297,631.30 and 13,021,008.60 is: 19,521,799.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542,467.80 : 32,297,631.30 = 13,021,008.60 : x
  2. Step 2: Convert to fraction form
    21,542,467.80/32,297,631.30 = 13,021,008.60/x
  3. Step 3: Cross multiply
    21,542,467.80x = 32,297,631.30 × 13,021,008.60
  4. Step 4: Simplify right side
    21,542,467.80x = 420,547,734,916,929.19
  5. Step 5: Solve for x
    x = 420,547,734,916,929.19/21,542,467.80
  6. Step 6: Final answer
    x = 19,521,799.40

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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.