Home / 13,458,521.20-20,174,659.80-7,695,338.80

Finding the Fourth Proportional to 13,458,521.20, 20,174,659.80 and 7,695,338.80

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Solution

The fourth proportional to 13,458,521.20, 20,174,659.80 and 7,695,338.80 is: 11,535,505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458,521.20 : 20,174,659.80 = 7,695,338.80 : x
  2. Step 2: Convert to fraction form
    13,458,521.20/20,174,659.80 = 7,695,338.80/x
  3. Step 3: Cross multiply
    13,458,521.20x = 20,174,659.80 × 7,695,338.80
  4. Step 4: Simplify right side
    13,458,521.20x = 155,250,842,335,740.25
  5. Step 5: Solve for x
    x = 155,250,842,335,740.25/13,458,521.20
  6. Step 6: Final answer
    x = 11,535,505.28

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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.