Home / 12,229,430.09-18,343,665.88-4,142,405.48

Finding the Fourth Proportional to 12,229,430.09, 18,343,665.88 and 4,142,405.48

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Solution

The fourth proportional to 12,229,430.09, 18,343,665.88 and 4,142,405.48 is: 6,213,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229,430.09 : 18,343,665.88 = 4,142,405.48 : x
  2. Step 2: Convert to fraction form
    12,229,430.09/18,343,665.88 = 4,142,405.48/x
  3. Step 3: Cross multiply
    12,229,430.09x = 18,343,665.88 × 4,142,405.48
  4. Step 4: Simplify right side
    12,229,430.09x = 75,986,901,962,526.69
  5. Step 5: Solve for x
    x = 75,986,901,962,526.69/12,229,430.09
  6. Step 6: Final answer
    x = 6,213,445.88

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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.