Home / 20,139,127.82-30,218,139.57-10,042,536.14

Finding the Fourth Proportional to 20,139,127.82, 30,218,139.57 and 10,042,536.14

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Solution

The fourth proportional to 20,139,127.82, 30,218,139.57 and 10,042,536.14 is: 15,068,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,127.82 : 30,218,139.57 = 10,042,536.14 : x
  2. Step 2: Convert to fraction form
    20,139,127.82/30,218,139.57 = 10,042,536.14/x
  3. Step 3: Cross multiply
    20,139,127.82x = 30,218,139.57 × 10,042,536.14
  4. Step 4: Simplify right side
    20,139,127.82x = 303,466,758,715,289.06
  5. Step 5: Solve for x
    x = 303,466,758,715,289.06/20,139,127.82
  6. Step 6: Final answer
    x = 15,068,515.45

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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.