Home / 13,842,403.20-20,763,604.80-7,385,395.05

Finding the Fourth Proportional to 13,842,403.20, 20,763,604.80 and 7,385,395.05

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Solution

The fourth proportional to 13,842,403.20, 20,763,604.80 and 7,385,395.05 is: 11,078,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842,403.20 : 20,763,604.80 = 7,385,395.05 : x
  2. Step 2: Convert to fraction form
    13,842,403.20/20,763,604.80 = 7,385,395.05/x
  3. Step 3: Cross multiply
    13,842,403.20x = 20,763,604.80 × 7,385,395.05
  4. Step 4: Simplify right side
    13,842,403.20x = 153,347,424,110,076.25
  5. Step 5: Solve for x
    x = 153,347,424,110,076.25/13,842,403.20
  6. Step 6: Final answer
    x = 11,078,092.58

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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.