Home / 28,190,812.80-42,286,219.20-16,853,404.80

Finding the Fourth Proportional to 28,190,812.80, 42,286,219.20 and 16,853,404.80

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Solution

The fourth proportional to 28,190,812.80, 42,286,219.20 and 16,853,404.80 is: 25,280,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190,812.80 : 42,286,219.20 = 16,853,404.80 : x
  2. Step 2: Convert to fraction form
    28,190,812.80/42,286,219.20 = 16,853,404.80/x
  3. Step 3: Cross multiply
    28,190,812.80x = 42,286,219.20 × 16,853,404.80
  4. Step 4: Simplify right side
    28,190,812.80x = 712,666,769,639,132.25
  5. Step 5: Solve for x
    x = 712,666,769,639,132.25/28,190,812.80
  6. Step 6: Final answer
    x = 25,280,107.20

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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.