Home / 366,979,660.40-550,469,490.60-203,720,985.20

Finding the Fourth Proportional to 366,979,660.40, 550,469,490.60 and 203,720,985.20

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Solution

The fourth proportional to 366,979,660.40, 550,469,490.60 and 203,720,985.20 is: 305,581,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,979,660.40 : 550,469,490.60 = 203,720,985.20 : x
  2. Step 2: Convert to fraction form
    366,979,660.40/550,469,490.60 = 203,720,985.20/x
  3. Step 3: Cross multiply
    366,979,660.40x = 550,469,490.60 × 203,720,985.20
  4. Step 4: Simplify right side
    366,979,660.40x = 112,142,186,947,574,144
  5. Step 5: Solve for x
    x = 112,142,186,947,574,144/366,979,660.40
  6. Step 6: Final answer
    x = 305,581,477.80

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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.