Home / 155,975,081.49-233,591,270.31-90,257,682.78

Finding the Fourth Proportional to 155,975,081.49, 233,591,270.31 and 90,257,682.78

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Solution

The fourth proportional to 155,975,081.49, 233,591,270.31 and 90,257,682.78 is: 135,171,634.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,975,081.49 : 233,591,270.31 = 90,257,682.78 : x
  2. Step 2: Convert to fraction form
    155,975,081.49/233,591,270.31 = 90,257,682.78/x
  3. Step 3: Cross multiply
    155,975,081.49x = 233,591,270.31 × 90,257,682.78
  4. Step 4: Simplify right side
    155,975,081.49x = 21,083,406,775,817,212
  5. Step 5: Solve for x
    x = 21,083,406,775,817,212/155,975,081.49
  6. Step 6: Final answer
    x = 135,171,634.95

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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.