Home / 18,709,166.40-28,087,369.20-10,080,139.20

Finding the Fourth Proportional to 18,709,166.40, 28,087,369.20 and 10,080,139.20

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Solution

The fourth proportional to 18,709,166.40, 28,087,369.20 and 10,080,139.20 is: 15,132,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,166.40 : 28,087,369.20 = 10,080,139.20 : x
  2. Step 2: Convert to fraction form
    18,709,166.40/28,087,369.20 = 10,080,139.20/x
  3. Step 3: Cross multiply
    18,709,166.40x = 28,087,369.20 × 10,080,139.20
  4. Step 4: Simplify right side
    18,709,166.40x = 283,124,591,297,792.62
  5. Step 5: Solve for x
    x = 283,124,591,297,792.62/18,709,166.40
  6. Step 6: Final answer
    x = 15,132,934.59

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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.