Home / 28,689,784.80-39,591,917.76-16,299,900.04

Finding the Fourth Proportional to 28,689,784.80, 39,591,917.76 and 16,299,900.04

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Solution

The fourth proportional to 28,689,784.80, 39,591,917.76 and 16,299,900.04 is: 22,493,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689,784.80 : 39,591,917.76 = 16,299,900.04 : x
  2. Step 2: Convert to fraction form
    28,689,784.80/39,591,917.76 = 16,299,900.04/x
  3. Step 3: Cross multiply
    28,689,784.80x = 39,591,917.76 × 16,299,900.04
  4. Step 4: Simplify right side
    28,689,784.80x = 645,344,301,879,900.62
  5. Step 5: Solve for x
    x = 645,344,301,879,900.62/28,689,784.80
  6. Step 6: Final answer
    x = 22,493,870.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.