Home / 288,137,142.98-432,141,027.92-132,541,514.83

Finding the Fourth Proportional to 288,137,142.98, 432,141,027.92 and 132,541,514.83

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Solution

The fourth proportional to 288,137,142.98, 432,141,027.92 and 132,541,514.83 is: 198,782,516.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,137,142.98 : 432,141,027.92 = 132,541,514.83 : x
  2. Step 2: Convert to fraction form
    288,137,142.98/432,141,027.92 = 132,541,514.83/x
  3. Step 3: Cross multiply
    288,137,142.98x = 432,141,027.92 × 132,541,514.83
  4. Step 4: Simplify right side
    288,137,142.98x = 57,276,626,461,084,624
  5. Step 5: Solve for x
    x = 57,276,626,461,084,624/288,137,142.98
  6. Step 6: Final answer
    x = 198,782,516.79

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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.