Home / 21,345,018.48-32,017,412.75-5,170,961.57

Finding the Fourth Proportional to 21,345,018.48, 32,017,412.75 and 5,170,961.57

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Solution

The fourth proportional to 21,345,018.48, 32,017,412.75 and 5,170,961.57 is: 7,756,414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345,018.48 : 32,017,412.75 = 5,170,961.57 : x
  2. Step 2: Convert to fraction form
    21,345,018.48/32,017,412.75 = 5,170,961.57/x
  3. Step 3: Cross multiply
    21,345,018.48x = 32,017,412.75 × 5,170,961.57
  4. Step 4: Simplify right side
    21,345,018.48x = 165,560,810,715,136.16
  5. Step 5: Solve for x
    x = 165,560,810,715,136.16/21,345,018.48
  6. Step 6: Final answer
    x = 7,756,414.49

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1.5x scale

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.