Home / 61,002,109.60-91,503,164.40-20,612,010.40

Finding the Fourth Proportional to 61,002,109.60, 91,503,164.40 and 20,612,010.40

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Solution

The fourth proportional to 61,002,109.60, 91,503,164.40 and 20,612,010.40 is: 30,918,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,002,109.60 : 91,503,164.40 = 20,612,010.40 : x
  2. Step 2: Convert to fraction form
    61,002,109.60/91,503,164.40 = 20,612,010.40/x
  3. Step 3: Cross multiply
    61,002,109.60x = 91,503,164.40 × 20,612,010.40
  4. Step 4: Simplify right side
    61,002,109.60x = 1,886,064,176,245,709.75
  5. Step 5: Solve for x
    x = 1,886,064,176,245,709.75/61,002,109.60
  6. Step 6: Final answer
    x = 30,918,015.60

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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.