Home / 255,004,809.90-381,869,485.65-203,986,473.90

Finding the Fourth Proportional to 255,004,809.90, 381,869,485.65 and 203,986,473.90

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Solution

The fourth proportional to 255,004,809.90, 381,869,485.65 and 203,986,473.90 is: 305,469,570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,004,809.90 : 381,869,485.65 = 203,986,473.90 : x
  2. Step 2: Convert to fraction form
    255,004,809.90/381,869,485.65 = 203,986,473.90/x
  3. Step 3: Cross multiply
    255,004,809.90x = 381,869,485.65 × 203,986,473.90
  4. Step 4: Simplify right side
    255,004,809.90x = 77,896,209,867,750,144
  5. Step 5: Solve for x
    x = 77,896,209,867,750,144/255,004,809.90
  6. Step 6: Final answer
    x = 305,469,570.94

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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.