Home / 12,123,028.40-18,184,542.60-7,084,180.40

Finding the Fourth Proportional to 12,123,028.40, 18,184,542.60 and 7,084,180.40

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Solution

The fourth proportional to 12,123,028.40, 18,184,542.60 and 7,084,180.40 is: 10,626,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123,028.40 : 18,184,542.60 = 7,084,180.40 : x
  2. Step 2: Convert to fraction form
    12,123,028.40/18,184,542.60 = 7,084,180.40/x
  3. Step 3: Cross multiply
    12,123,028.40x = 18,184,542.60 × 7,084,180.40
  4. Step 4: Simplify right side
    12,123,028.40x = 128,822,580,269,885.06
  5. Step 5: Solve for x
    x = 128,822,580,269,885.06/12,123,028.40
  6. Step 6: Final answer
    x = 10,626,270.60

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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.