Home / 12,123,771.60-18,185,657.40-3,603,000.90

Finding the Fourth Proportional to 12,123,771.60, 18,185,657.40 and 3,603,000.90

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Solution

The fourth proportional to 12,123,771.60, 18,185,657.40 and 3,603,000.90 is: 5,404,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123,771.60 : 18,185,657.40 = 3,603,000.90 : x
  2. Step 2: Convert to fraction form
    12,123,771.60/18,185,657.40 = 3,603,000.90/x
  3. Step 3: Cross multiply
    12,123,771.60x = 18,185,657.40 × 3,603,000.90
  4. Step 4: Simplify right side
    12,123,771.60x = 65,522,939,979,291.66
  5. Step 5: Solve for x
    x = 65,522,939,979,291.66/12,123,771.60
  6. Step 6: Final answer
    x = 5,404,501.35

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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.