Home / 165,859,996.80-248,789,995.20-79,583,721.60

Finding the Fourth Proportional to 165,859,996.80, 248,789,995.20 and 79,583,721.60

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Solution

The fourth proportional to 165,859,996.80, 248,789,995.20 and 79,583,721.60 is: 119,375,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,859,996.80 : 248,789,995.20 = 79,583,721.60 : x
  2. Step 2: Convert to fraction form
    165,859,996.80/248,789,995.20 = 79,583,721.60/x
  3. Step 3: Cross multiply
    165,859,996.80x = 248,789,995.20 × 79,583,721.60
  4. Step 4: Simplify right side
    165,859,996.80x = 19,799,633,714,862,132
  5. Step 5: Solve for x
    x = 19,799,633,714,862,132/165,859,996.80
  6. Step 6: Final answer
    x = 119,375,582.40

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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.