Home / 20,143,810.20-30,215,715.30-14,085,382.80

Finding the Fourth Proportional to 20,143,810.20, 30,215,715.30 and 14,085,382.80

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Solution

The fourth proportional to 20,143,810.20, 30,215,715.30 and 14,085,382.80 is: 21,128,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,810.20 : 30,215,715.30 = 14,085,382.80 : x
  2. Step 2: Convert to fraction form
    20,143,810.20/30,215,715.30 = 14,085,382.80/x
  3. Step 3: Cross multiply
    20,143,810.20x = 30,215,715.30 × 14,085,382.80
  4. Step 4: Simplify right side
    20,143,810.20x = 425,599,916,576,316.88
  5. Step 5: Solve for x
    x = 425,599,916,576,316.88/20,143,810.20
  6. Step 6: Final answer
    x = 21,128,074.20

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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.