Home / 90,988,403.72-125,563,987.86-49,735,460.84

Finding the Fourth Proportional to 90,988,403.72, 125,563,987.86 and 49,735,460.84

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Solution

The fourth proportional to 90,988,403.72, 125,563,987.86 and 49,735,460.84 is: 68,634,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,988,403.72 : 125,563,987.86 = 49,735,460.84 : x
  2. Step 2: Convert to fraction form
    90,988,403.72/125,563,987.86 = 49,735,460.84/x
  3. Step 3: Cross multiply
    90,988,403.72x = 125,563,987.86 × 49,735,460.84
  4. Step 4: Simplify right side
    90,988,403.72x = 6,244,982,801,125,266
  5. Step 5: Solve for x
    x = 6,244,982,801,125,266/90,988,403.72
  6. Step 6: Final answer
    x = 68,634,930.89

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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.