Home / 157,522,556.95-217,375,430.20-86,956,651.51

Finding the Fourth Proportional to 157,522,556.95, 217,375,430.20 and 86,956,651.51

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Solution

The fourth proportional to 157,522,556.95, 217,375,430.20 and 86,956,651.51 is: 119,997,033.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,522,556.95 : 217,375,430.20 = 86,956,651.51 : x
  2. Step 2: Convert to fraction form
    157,522,556.95/217,375,430.20 = 86,956,651.51/x
  3. Step 3: Cross multiply
    157,522,556.95x = 217,375,430.20 × 86,956,651.51
  4. Step 4: Simplify right side
    157,522,556.95x = 18,902,239,529,976,896
  5. Step 5: Solve for x
    x = 18,902,239,529,976,896/157,522,556.95
  6. Step 6: Final answer
    x = 119,997,033.42

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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.