Home / 13,385,879.60-20,120,809.80-13,133,937.20

Finding the Fourth Proportional to 13,385,879.60, 20,120,809.80 and 13,133,937.20

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Solution

The fourth proportional to 13,385,879.60, 20,120,809.80 and 13,133,937.20 is: 19,742,105.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385,879.60 : 20,120,809.80 = 13,133,937.20 : x
  2. Step 2: Convert to fraction form
    13,385,879.60/20,120,809.80 = 13,133,937.20/x
  3. Step 3: Cross multiply
    13,385,879.60x = 20,120,809.80 × 13,133,937.20
  4. Step 4: Simplify right side
    13,385,879.60x = 264,265,452,326,344.56
  5. Step 5: Solve for x
    x = 264,265,452,326,344.56/13,385,879.60
  6. Step 6: Final answer
    x = 19,742,105.88

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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.