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Finding the Fourth Proportional to 695,997,168.16, 960,481,088.56 and 378,455,138.64

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Solution

The fourth proportional to 695,997,168.16, 960,481,088.56 and 378,455,138.64 is: 522,270,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,997,168.16 : 960,481,088.56 = 378,455,138.64 : x
  2. Step 2: Convert to fraction form
    695,997,168.16/960,481,088.56 = 378,455,138.64/x
  3. Step 3: Cross multiply
    695,997,168.16x = 960,481,088.56 × 378,455,138.64
  4. Step 4: Simplify right side
    695,997,168.16x = 363,499,003,532,072,896
  5. Step 5: Solve for x
    x = 363,499,003,532,072,896/695,997,168.16
  6. Step 6: Final answer
    x = 522,270,808.22

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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.