Home / 21,482,754.40-32,224,131.60-12,989,288.80

Finding the Fourth Proportional to 21,482,754.40, 32,224,131.60 and 12,989,288.80

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Solution

The fourth proportional to 21,482,754.40, 32,224,131.60 and 12,989,288.80 is: 19,483,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482,754.40 : 32,224,131.60 = 12,989,288.80 : x
  2. Step 2: Convert to fraction form
    21,482,754.40/32,224,131.60 = 12,989,288.80/x
  3. Step 3: Cross multiply
    21,482,754.40x = 32,224,131.60 × 12,989,288.80
  4. Step 4: Simplify right side
    21,482,754.40x = 418,568,551,681,606.12
  5. Step 5: Solve for x
    x = 418,568,551,681,606.12/21,482,754.40
  6. Step 6: Final answer
    x = 19,483,933.20

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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.