Home / 20,178,673.48-27,839,292.42-15,533,880.76

Finding the Fourth Proportional to 20,178,673.48, 27,839,292.42 and 15,533,880.76

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Solution

The fourth proportional to 20,178,673.48, 27,839,292.42 and 15,533,880.76 is: 21,431,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,673.48 : 27,839,292.42 = 15,533,880.76 : x
  2. Step 2: Convert to fraction form
    20,178,673.48/27,839,292.42 = 15,533,880.76/x
  3. Step 3: Cross multiply
    20,178,673.48x = 27,839,292.42 × 15,533,880.76
  4. Step 4: Simplify right side
    20,178,673.48x = 432,452,248,825,453.62
  5. Step 5: Solve for x
    x = 432,452,248,825,453.62/20,178,673.48
  6. Step 6: Final answer
    x = 21,431,153.51

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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.