Home / 287,763,660.72-397,104,024.96-164,044,195.92

Finding the Fourth Proportional to 287,763,660.72, 397,104,024.96 and 164,044,195.92

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Solution

The fourth proportional to 287,763,660.72, 397,104,024.96 and 164,044,195.92 is: 226,375,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,763,660.72 : 397,104,024.96 = 164,044,195.92 : x
  2. Step 2: Convert to fraction form
    287,763,660.72/397,104,024.96 = 164,044,195.92/x
  3. Step 3: Cross multiply
    287,763,660.72x = 397,104,024.96 × 164,044,195.92
  4. Step 4: Simplify right side
    287,763,660.72x = 65,142,610,471,158,800
  5. Step 5: Solve for x
    x = 65,142,610,471,158,800/287,763,660.72
  6. Step 6: Final answer
    x = 226,375,388.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.