Home / 12,418,396.70-17,137,768.46-6,912,077.45

Finding the Fourth Proportional to 12,418,396.70, 17,137,768.46 and 6,912,077.45

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Solution

The fourth proportional to 12,418,396.70, 17,137,768.46 and 6,912,077.45 is: 9,538,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418,396.70 : 17,137,768.46 = 6,912,077.45 : x
  2. Step 2: Convert to fraction form
    12,418,396.70/17,137,768.46 = 6,912,077.45/x
  3. Step 3: Cross multiply
    12,418,396.70x = 17,137,768.46 × 6,912,077.45
  4. Step 4: Simplify right side
    12,418,396.70x = 118,457,582,915,687.23
  5. Step 5: Solve for x
    x = 118,457,582,915,687.23/12,418,396.70
  6. Step 6: Final answer
    x = 9,538,878.95

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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.