Home / 263,622,643.20-395,433,964.80-72,146,419.20

Finding the Fourth Proportional to 263,622,643.20, 395,433,964.80 and 72,146,419.20

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Solution

The fourth proportional to 263,622,643.20, 395,433,964.80 and 72,146,419.20 is: 108,219,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,622,643.20 : 395,433,964.80 = 72,146,419.20 : x
  2. Step 2: Convert to fraction form
    263,622,643.20/395,433,964.80 = 72,146,419.20/x
  3. Step 3: Cross multiply
    263,622,643.20x = 395,433,964.80 × 72,146,419.20
  4. Step 4: Simplify right side
    263,622,643.20x = 28,529,144,590,378,848
  5. Step 5: Solve for x
    x = 28,529,144,590,378,848/263,622,643.20
  6. Step 6: Final answer
    x = 108,219,628.80

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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.