Home / 90,765,126.78-125,255,723.09-49,512,019.14

Finding the Fourth Proportional to 90,765,126.78, 125,255,723.09 and 49,512,019.14

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Solution

The fourth proportional to 90,765,126.78, 125,255,723.09 and 49,512,019.14 is: 68,326,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,765,126.78 : 125,255,723.09 = 49,512,019.14 : x
  2. Step 2: Convert to fraction form
    90,765,126.78/125,255,723.09 = 49,512,019.14/x
  3. Step 3: Cross multiply
    90,765,126.78x = 125,255,723.09 × 49,512,019.14
  4. Step 4: Simplify right side
    90,765,126.78x = 6,201,663,759,026,620
  5. Step 5: Solve for x
    x = 6,201,663,759,026,620/90,765,126.78
  6. Step 6: Final answer
    x = 68,326,503.57

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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.