Home / 12,640,662.87-17,442,244.45-7,676,522.79

Finding the Fourth Proportional to 12,640,662.87, 17,442,244.45 and 7,676,522.79

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Solution

The fourth proportional to 12,640,662.87, 17,442,244.45 and 7,676,522.79 is: 10,592,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,662.87 : 17,442,244.45 = 7,676,522.79 : x
  2. Step 2: Convert to fraction form
    12,640,662.87/17,442,244.45 = 7,676,522.79/x
  3. Step 3: Cross multiply
    12,640,662.87x = 17,442,244.45 × 7,676,522.79
  4. Step 4: Simplify right side
    12,640,662.87x = 133,895,786,973,363.27
  5. Step 5: Solve for x
    x = 133,895,786,973,363.27/12,640,662.87
  6. Step 6: Final answer
    x = 10,592,465.63

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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.