Home / 20,434,147.65-28,205,957.07-12,176,800.22

Finding the Fourth Proportional to 20,434,147.65, 28,205,957.07 and 12,176,800.22

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Solution

The fourth proportional to 20,434,147.65, 28,205,957.07 and 12,176,800.22 is: 16,808,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,147.65 : 28,205,957.07 = 12,176,800.22 : x
  2. Step 2: Convert to fraction form
    20,434,147.65/28,205,957.07 = 12,176,800.22/x
  3. Step 3: Cross multiply
    20,434,147.65x = 28,205,957.07 × 12,176,800.22
  4. Step 4: Simplify right side
    20,434,147.65x = 343,458,304,114,256.75
  5. Step 5: Solve for x
    x = 343,458,304,114,256.75/20,434,147.65
  6. Step 6: Final answer
    x = 16,808,056.30

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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.