Home / 12,122,930.20-18,187,019.70-3,604,127.80

Finding the Fourth Proportional to 12,122,930.20, 18,187,019.70 and 3,604,127.80

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Solution

The fourth proportional to 12,122,930.20, 18,187,019.70 and 3,604,127.80 is: 5,406,971.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122,930.20 : 18,187,019.70 = 3,604,127.80 : x
  2. Step 2: Convert to fraction form
    12,122,930.20/18,187,019.70 = 3,604,127.80/x
  3. Step 3: Cross multiply
    12,122,930.20x = 18,187,019.70 × 3,604,127.80
  4. Step 4: Simplify right side
    12,122,930.20x = 65,548,343,299,917.66
  5. Step 5: Solve for x
    x = 65,548,343,299,917.66/12,122,930.20
  6. Step 6: Final answer
    x = 5,406,971.93

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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.