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Finding the Fourth Proportional to 7,950,140.12, 10,978,013.52 and 7,693,055.48

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Solution

The fourth proportional to 7,950,140.12, 10,978,013.52 and 7,693,055.48 is: 10,623,016.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950,140.12 : 10,978,013.52 = 7,693,055.48 : x
  2. Step 2: Convert to fraction form
    7,950,140.12/10,978,013.52 = 7,693,055.48/x
  3. Step 3: Cross multiply
    7,950,140.12x = 10,978,013.52 × 7,693,055.48
  4. Step 4: Simplify right side
    7,950,140.12x = 84,454,467,069,550.09
  5. Step 5: Solve for x
    x = 84,454,467,069,550.09/7,950,140.12
  6. Step 6: Final answer
    x = 10,623,016.17

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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.