Home / 376,487,729.28-519,472,474.56-219,783,720.96

Finding the Fourth Proportional to 376,487,729.28, 519,472,474.56 and 219,783,720.96

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Solution

The fourth proportional to 376,487,729.28, 519,472,474.56 and 219,783,720.96 is: 303,254,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,487,729.28 : 519,472,474.56 = 219,783,720.96 : x
  2. Step 2: Convert to fraction form
    376,487,729.28/519,472,474.56 = 219,783,720.96/x
  3. Step 3: Cross multiply
    376,487,729.28x = 519,472,474.56 × 219,783,720.96
  4. Step 4: Simplify right side
    376,487,729.28x = 114,171,593,395,095,744
  5. Step 5: Solve for x
    x = 114,171,593,395,095,744/376,487,729.28
  6. Step 6: Final answer
    x = 303,254,487.51

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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.