Home / 280,955,703.60-421,578,867.60-203,868,163.44

Finding the Fourth Proportional to 280,955,703.60, 421,578,867.60 and 203,868,163.44

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Solution

The fourth proportional to 280,955,703.60, 421,578,867.60 and 203,868,163.44 is: 305,907,687.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,955,703.60 : 421,578,867.60 = 203,868,163.44 : x
  2. Step 2: Convert to fraction form
    280,955,703.60/421,578,867.60 = 203,868,163.44/x
  3. Step 3: Cross multiply
    280,955,703.60x = 421,578,867.60 × 203,868,163.44
  4. Step 4: Simplify right side
    280,955,703.60x = 85,946,509,482,726,928
  5. Step 5: Solve for x
    x = 85,946,509,482,726,928/280,955,703.60
  6. Step 6: Final answer
    x = 305,907,687.16

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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.