Home / 12,349,087.20-18,534,128.40-5,536,144.80

Finding the Fourth Proportional to 12,349,087.20, 18,534,128.40 and 5,536,144.80

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Solution

The fourth proportional to 12,349,087.20, 18,534,128.40 and 5,536,144.80 is: 8,308,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349,087.20 : 18,534,128.40 = 5,536,144.80 : x
  2. Step 2: Convert to fraction form
    12,349,087.20/18,534,128.40 = 5,536,144.80/x
  3. Step 3: Cross multiply
    12,349,087.20x = 18,534,128.40 × 5,536,144.80
  4. Step 4: Simplify right side
    12,349,087.20x = 102,607,618,564,192.31
  5. Step 5: Solve for x
    x = 102,607,618,564,192.31/12,349,087.20
  6. Step 6: Final answer
    x = 8,308,923.32

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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.