Home / 28,193,080.80-42,289,621.20-16,855,672.80

Finding the Fourth Proportional to 28,193,080.80, 42,289,621.20 and 16,855,672.80

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Solution

The fourth proportional to 28,193,080.80, 42,289,621.20 and 16,855,672.80 is: 25,283,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193,080.80 : 42,289,621.20 = 16,855,672.80 : x
  2. Step 2: Convert to fraction form
    28,193,080.80/42,289,621.20 = 16,855,672.80/x
  3. Step 3: Cross multiply
    28,193,080.80x = 42,289,621.20 × 16,855,672.80
  4. Step 4: Simplify right side
    28,193,080.80x = 712,820,017,783,143.50
  5. Step 5: Solve for x
    x = 712,820,017,783,143.50/28,193,080.80
  6. Step 6: Final answer
    x = 25,283,509.20

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Double scale
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Similar ratio
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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.