Home / 279,937,339.60-419,906,009.40-192,261,384.40

Finding the Fourth Proportional to 279,937,339.60, 419,906,009.40 and 192,261,384.40

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Solution

The fourth proportional to 279,937,339.60, 419,906,009.40 and 192,261,384.40 is: 288,392,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,339.60 : 419,906,009.40 = 192,261,384.40 : x
  2. Step 2: Convert to fraction form
    279,937,339.60/419,906,009.40 = 192,261,384.40/x
  3. Step 3: Cross multiply
    279,937,339.60x = 419,906,009.40 × 192,261,384.40
  4. Step 4: Simplify right side
    279,937,339.60x = 80,731,710,685,123,408
  5. Step 5: Solve for x
    x = 80,731,710,685,123,408/279,937,339.60
  6. Step 6: Final answer
    x = 288,392,076.60

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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.