Home / 90,380,830.25-124,739,179.53-55,119,092.51

Finding the Fourth Proportional to 90,380,830.25, 124,739,179.53 and 55,119,092.51

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Solution

The fourth proportional to 90,380,830.25, 124,739,179.53 and 55,119,092.51 is: 76,072,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,380,830.25 : 124,739,179.53 = 55,119,092.51 : x
  2. Step 2: Convert to fraction form
    90,380,830.25/124,739,179.53 = 55,119,092.51/x
  3. Step 3: Cross multiply
    90,380,830.25x = 124,739,179.53 × 55,119,092.51
  4. Step 4: Simplify right side
    90,380,830.25x = 6,875,510,376,135,568
  5. Step 5: Solve for x
    x = 6,875,510,376,135,568/90,380,830.25
  6. Step 6: Final answer
    x = 76,072,662.28

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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.