Home / 199,383,821.20-299,383,661.40-108,684,557.20

Finding the Fourth Proportional to 199,383,821.20, 299,383,661.40 and 108,684,557.20

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Solution

The fourth proportional to 199,383,821.20, 299,383,661.40 and 108,684,557.20 is: 163,194,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,383,821.20 : 299,383,661.40 = 108,684,557.20 : x
  2. Step 2: Convert to fraction form
    199,383,821.20/299,383,661.40 = 108,684,557.20/x
  3. Step 3: Cross multiply
    199,383,821.20x = 299,383,661.40 × 108,684,557.20
  4. Step 4: Simplify right side
    199,383,821.20x = 32,538,380,672,173,732
  5. Step 5: Solve for x
    x = 32,538,380,672,173,732/199,383,821.20
  6. Step 6: Final answer
    x = 163,194,688.90

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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.