Home / 280,946,651.96-421,228,437.73-142,505,305.84

Finding the Fourth Proportional to 280,946,651.96, 421,228,437.73 and 142,505,305.84

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Solution

The fourth proportional to 280,946,651.96, 421,228,437.73 and 142,505,305.84 is: 213,660,803.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,946,651.96 : 421,228,437.73 = 142,505,305.84 : x
  2. Step 2: Convert to fraction form
    280,946,651.96/421,228,437.73 = 142,505,305.84/x
  3. Step 3: Cross multiply
    280,946,651.96x = 421,228,437.73 × 142,505,305.84
  4. Step 4: Simplify right side
    280,946,651.96x = 60,027,287,344,756,648
  5. Step 5: Solve for x
    x = 60,027,287,344,756,648/280,946,651.96
  6. Step 6: Final answer
    x = 213,660,803.31

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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.