Home / 28,077,176.80-42,080,335.80-13,669,220.80

Finding the Fourth Proportional to 28,077,176.80, 42,080,335.80 and 13,669,220.80

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Solution

The fourth proportional to 28,077,176.80, 42,080,335.80 and 13,669,220.80 is: 20,486,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077,176.80 : 42,080,335.80 = 13,669,220.80 : x
  2. Step 2: Convert to fraction form
    28,077,176.80/42,080,335.80 = 13,669,220.80/x
  3. Step 3: Cross multiply
    28,077,176.80x = 42,080,335.80 × 13,669,220.80
  4. Step 4: Simplify right side
    28,077,176.80x = 575,205,401,388,344.62
  5. Step 5: Solve for x
    x = 575,205,401,388,344.62/28,077,176.80
  6. Step 6: Final answer
    x = 20,486,582.59

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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.