Home / 155,688,906.60-214,855,176.20-86,078,781.52

Finding the Fourth Proportional to 155,688,906.60, 214,855,176.20 and 86,078,781.52

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Solution

The fourth proportional to 155,688,906.60, 214,855,176.20 and 86,078,781.52 is: 118,791,198.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,688,906.60 : 214,855,176.20 = 86,078,781.52 : x
  2. Step 2: Convert to fraction form
    155,688,906.60/214,855,176.20 = 86,078,781.52/x
  3. Step 3: Cross multiply
    155,688,906.60x = 214,855,176.20 × 86,078,781.52
  4. Step 4: Simplify right side
    155,688,906.60x = 18,494,471,770,560,900
  5. Step 5: Solve for x
    x = 18,494,471,770,560,900/155,688,906.60
  6. Step 6: Final answer
    x = 118,791,198.26

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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.