Home / 28,685,783.20-39,586,380.24-15,808,727.20

Finding the Fourth Proportional to 28,685,783.20, 39,586,380.24 and 15,808,727.20

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Solution

The fourth proportional to 28,685,783.20, 39,586,380.24 and 15,808,727.20 is: 21,816,043.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,783.20 : 39,586,380.24 = 15,808,727.20 : x
  2. Step 2: Convert to fraction form
    28,685,783.20/39,586,380.24 = 15,808,727.20/x
  3. Step 3: Cross multiply
    28,685,783.20x = 39,586,380.24 × 15,808,727.20
  4. Step 4: Simplify right side
    28,685,783.20x = 625,810,286,049,630.50
  5. Step 5: Solve for x
    x = 625,810,286,049,630.50/28,685,783.20
  6. Step 6: Final answer
    x = 21,816,043.22

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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.