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Finding the Fourth Proportional to 30,978,103.31, 46,425,285.53 and 11,798,397.62

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Solution

The fourth proportional to 30,978,103.31, 46,425,285.53 and 11,798,397.62 is: 17,681,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,978,103.31 : 46,425,285.53 = 11,798,397.62 : x
  2. Step 2: Convert to fraction form
    30,978,103.31/46,425,285.53 = 11,798,397.62/x
  3. Step 3: Cross multiply
    30,978,103.31x = 46,425,285.53 × 11,798,397.62
  4. Step 4: Simplify right side
    30,978,103.31x = 547,743,978,304,972.44
  5. Step 5: Solve for x
    x = 547,743,978,304,972.44/30,978,103.31
  6. Step 6: Final answer
    x = 17,681,649.93

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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.