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Finding the Fourth Proportional to 638,904,889, 958,463,228.04 and 224,274,128.32

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Solution

The fourth proportional to 638,904,889, 958,463,228.04 and 224,274,128.32 is: 336,448,364.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,904,889 : 958,463,228.04 = 224,274,128.32 : x
  2. Step 2: Convert to fraction form
    638,904,889/958,463,228.04 = 224,274,128.32/x
  3. Step 3: Cross multiply
    638,904,889x = 958,463,228.04 × 224,274,128.32
  4. Step 4: Simplify right side
    638,904,889x = 214,958,504,995,444,352
  5. Step 5: Solve for x
    x = 214,958,504,995,444,352/638,904,889
  6. Step 6: Final answer
    x = 336,448,364.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.