Home / 61,199,123.20-91,798,684.80-20,809,607.20

Finding the Fourth Proportional to 61,199,123.20, 91,798,684.80 and 20,809,607.20

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Solution

The fourth proportional to 61,199,123.20, 91,798,684.80 and 20,809,607.20 is: 31,214,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,199,123.20 : 91,798,684.80 = 20,809,607.20 : x
  2. Step 2: Convert to fraction form
    61,199,123.20/91,798,684.80 = 20,809,607.20/x
  3. Step 3: Cross multiply
    61,199,123.20x = 91,798,684.80 × 20,809,607.20
  4. Step 4: Simplify right side
    61,199,123.20x = 1,910,294,572,164,610.50
  5. Step 5: Solve for x
    x = 1,910,294,572,164,610.50/61,199,123.20
  6. Step 6: Final answer
    x = 31,214,410.80

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Similar ratio
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1.5x scale

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.