Home / 21,451,639.20-32,177,458.80-19,100,176.80

Finding the Fourth Proportional to 21,451,639.20, 32,177,458.80 and 19,100,176.80

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Solution

The fourth proportional to 21,451,639.20, 32,177,458.80 and 19,100,176.80 is: 28,650,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451,639.20 : 32,177,458.80 = 19,100,176.80 : x
  2. Step 2: Convert to fraction form
    21,451,639.20/32,177,458.80 = 19,100,176.80/x
  3. Step 3: Cross multiply
    21,451,639.20x = 32,177,458.80 × 19,100,176.80
  4. Step 4: Simplify right side
    21,451,639.20x = 614,595,152,054,715.88
  5. Step 5: Solve for x
    x = 614,595,152,054,715.88/21,451,639.20
  6. Step 6: Final answer
    x = 28,650,265.20

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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.