Home / 21,990,720.60-32,965,085.70-17,130,331.80

Finding the Fourth Proportional to 21,990,720.60, 32,965,085.70 and 17,130,331.80

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Solution

The fourth proportional to 21,990,720.60, 32,965,085.70 and 17,130,331.80 is: 25,679,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,990,720.60 : 32,965,085.70 = 17,130,331.80 : x
  2. Step 2: Convert to fraction form
    21,990,720.60/32,965,085.70 = 17,130,331.80/x
  3. Step 3: Cross multiply
    21,990,720.60x = 32,965,085.70 × 17,130,331.80
  4. Step 4: Simplify right side
    21,990,720.60x = 564,702,855,856,435.25
  5. Step 5: Solve for x
    x = 564,702,855,856,435.25/21,990,720.60
  6. Step 6: Final answer
    x = 25,679,142.86

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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.