Home / 13,608,036.20-20,388,434.70-12,757,730.60

Finding the Fourth Proportional to 13,608,036.20, 20,388,434.70 and 12,757,730.60

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Solution

The fourth proportional to 13,608,036.20, 20,388,434.70 and 12,757,730.60 is: 19,114,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,036.20 : 20,388,434.70 = 12,757,730.60 : x
  2. Step 2: Convert to fraction form
    13,608,036.20/20,388,434.70 = 12,757,730.60/x
  3. Step 3: Cross multiply
    13,608,036.20x = 20,388,434.70 × 12,757,730.60
  4. Step 4: Simplify right side
    13,608,036.20x = 260,110,157,258,291.81
  5. Step 5: Solve for x
    x = 260,110,157,258,291.81/13,608,036.20
  6. Step 6: Final answer
    x = 19,114,452.18

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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.