Home / 478,095,957.97-659,755,003.38-266,391,850.21

Finding the Fourth Proportional to 478,095,957.97, 659,755,003.38 and 266,391,850.21

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Solution

The fourth proportional to 478,095,957.97, 659,755,003.38 and 266,391,850.21 is: 367,611,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,095,957.97 : 659,755,003.38 = 266,391,850.21 : x
  2. Step 2: Convert to fraction form
    478,095,957.97/659,755,003.38 = 266,391,850.21/x
  3. Step 3: Cross multiply
    478,095,957.97x = 659,755,003.38 × 266,391,850.21
  4. Step 4: Simplify right side
    478,095,957.97x = 175,753,356,035,703,008
  5. Step 5: Solve for x
    x = 175,753,356,035,703,008/478,095,957.97
  6. Step 6: Final answer
    x = 367,611,047.75

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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.