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Finding the Fourth Proportional to 12,807,792.03, 17,674,892.49 and 7,006,449.21

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Solution

The fourth proportional to 12,807,792.03, 17,674,892.49 and 7,006,449.21 is: 9,668,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807,792.03 : 17,674,892.49 = 7,006,449.21 : x
  2. Step 2: Convert to fraction form
    12,807,792.03/17,674,892.49 = 7,006,449.21/x
  3. Step 3: Cross multiply
    12,807,792.03x = 17,674,892.49 × 7,006,449.21
  4. Step 4: Simplify right side
    12,807,792.03x = 123,838,236,523,395.42
  5. Step 5: Solve for x
    x = 123,838,236,523,395.42/12,807,792.03
  6. Step 6: Final answer
    x = 9,668,976.22

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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.