Home / 379,135,208-523,207,298.88-211,871,470.40

Finding the Fourth Proportional to 379,135,208, 523,207,298.88 and 211,871,470.40

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Solution

The fourth proportional to 379,135,208, 523,207,298.88 and 211,871,470.40 is: 292,383,026.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,135,208 : 523,207,298.88 = 211,871,470.40 : x
  2. Step 2: Convert to fraction form
    379,135,208/523,207,298.88 = 211,871,470.40/x
  3. Step 3: Cross multiply
    379,135,208x = 523,207,298.88 × 211,871,470.40
  4. Step 4: Simplify right side
    379,135,208x = 110,852,699,737,717,872
  5. Step 5: Solve for x
    x = 110,852,699,737,717,872/379,135,208
  6. Step 6: Final answer
    x = 292,383,026.95

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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.