Home / 661,238,285.44-991,859,467.78-163,248,857.40

Finding the Fourth Proportional to 661,238,285.44, 991,859,467.78 and 163,248,857.40

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Solution

The fourth proportional to 661,238,285.44, 991,859,467.78 and 163,248,857.40 is: 244,873,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,238,285.44 : 991,859,467.78 = 163,248,857.40 : x
  2. Step 2: Convert to fraction form
    661,238,285.44/991,859,467.78 = 163,248,857.40/x
  3. Step 3: Cross multiply
    661,238,285.44x = 991,859,467.78 × 163,248,857.40
  4. Step 4: Simplify right side
    661,238,285.44x = 161,919,924,816,457,120
  5. Step 5: Solve for x
    x = 161,919,924,816,457,120/661,238,285.44
  6. Step 6: Final answer
    x = 244,873,789.65

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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.