Home / 30,981,907.67-42,754,796.09-17,042,962.64

Finding the Fourth Proportional to 30,981,907.67, 42,754,796.09 and 17,042,962.64

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Solution

The fourth proportional to 30,981,907.67, 42,754,796.09 and 17,042,962.64 is: 23,519,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981,907.67 : 42,754,796.09 = 17,042,962.64 : x
  2. Step 2: Convert to fraction form
    30,981,907.67/42,754,796.09 = 17,042,962.64/x
  3. Step 3: Cross multiply
    30,981,907.67x = 42,754,796.09 × 17,042,962.64
  4. Step 4: Simplify right side
    30,981,907.67x = 728,668,392,143,699.38
  5. Step 5: Solve for x
    x = 728,668,392,143,699.38/30,981,907.67
  6. Step 6: Final answer
    x = 23,519,158.34

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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.