Home / 28,603,739.60-42,905,609.40-13,250,999.60

Finding the Fourth Proportional to 28,603,739.60, 42,905,609.40 and 13,250,999.60

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Solution

The fourth proportional to 28,603,739.60, 42,905,609.40 and 13,250,999.60 is: 19,876,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,603,739.60 : 42,905,609.40 = 13,250,999.60 : x
  2. Step 2: Convert to fraction form
    28,603,739.60/42,905,609.40 = 13,250,999.60/x
  3. Step 3: Cross multiply
    28,603,739.60x = 42,905,609.40 × 13,250,999.60
  4. Step 4: Simplify right side
    28,603,739.60x = 568,542,212,997,156.25
  5. Step 5: Solve for x
    x = 568,542,212,997,156.25/28,603,739.60
  6. Step 6: Final answer
    x = 19,876,499.40

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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.