Home / 30,980,823.78-42,754,334.58-17,042,536.97

Finding the Fourth Proportional to 30,980,823.78, 42,754,334.58 and 17,042,536.97

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Solution

The fourth proportional to 30,980,823.78, 42,754,334.58 and 17,042,536.97 is: 23,519,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,980,823.78 : 42,754,334.58 = 17,042,536.97 : x
  2. Step 2: Convert to fraction form
    30,980,823.78/42,754,334.58 = 17,042,536.97/x
  3. Step 3: Cross multiply
    30,980,823.78x = 42,754,334.58 × 17,042,536.97
  4. Step 4: Simplify right side
    30,980,823.78x = 728,642,327,600,513.62
  5. Step 5: Solve for x
    x = 728,642,327,600,513.62/30,980,823.78
  6. Step 6: Final answer
    x = 23,519,139.86

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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.