Home / 61,167,870.60-91,751,805.90-20,778,354.60

Finding the Fourth Proportional to 61,167,870.60, 91,751,805.90 and 20,778,354.60

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Solution

The fourth proportional to 61,167,870.60, 91,751,805.90 and 20,778,354.60 is: 31,167,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,167,870.60 : 91,751,805.90 = 20,778,354.60 : x
  2. Step 2: Convert to fraction form
    61,167,870.60/91,751,805.90 = 20,778,354.60/x
  3. Step 3: Cross multiply
    61,167,870.60x = 91,751,805.90 × 20,778,354.60
  4. Step 4: Simplify right side
    61,167,870.60x = 1,906,451,558,180,572.50
  5. Step 5: Solve for x
    x = 1,906,451,558,180,572.50/61,167,870.60
  6. Step 6: Final answer
    x = 31,167,531.90

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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.