Home / 368,391,321.63-551,706,052.03-212,472,426.75

Finding the Fourth Proportional to 368,391,321.63, 551,706,052.03 and 212,472,426.75

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Solution

The fourth proportional to 368,391,321.63, 551,706,052.03 and 212,472,426.75 is: 318,200,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,391,321.63 : 551,706,052.03 = 212,472,426.75 : x
  2. Step 2: Convert to fraction form
    368,391,321.63/551,706,052.03 = 212,472,426.75/x
  3. Step 3: Cross multiply
    368,391,321.63x = 551,706,052.03 × 212,472,426.75
  4. Step 4: Simplify right side
    368,391,321.63x = 117,222,323,724,717,328
  5. Step 5: Solve for x
    x = 117,222,323,724,717,328/368,391,321.63
  6. Step 6: Final answer
    x = 318,200,556.97

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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.