Home / 61,199,123.10-91,798,684.65-20,809,607.10

Finding the Fourth Proportional to 61,199,123.10, 91,798,684.65 and 20,809,607.10

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Solution

The fourth proportional to 61,199,123.10, 91,798,684.65 and 20,809,607.10 is: 31,214,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,199,123.10 : 91,798,684.65 = 20,809,607.10 : x
  2. Step 2: Convert to fraction form
    61,199,123.10/91,798,684.65 = 20,809,607.10/x
  3. Step 3: Cross multiply
    61,199,123.10x = 91,798,684.65 × 20,809,607.10
  4. Step 4: Simplify right side
    61,199,123.10x = 1,910,294,559,863,301.25
  5. Step 5: Solve for x
    x = 1,910,294,559,863,301.25/61,199,123.10
  6. Step 6: Final answer
    x = 31,214,410.65

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Double scale
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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.