Home / 12,379,392.64-17,079,182.40-8,089,528.96

Finding the Fourth Proportional to 12,379,392.64, 17,079,182.40 and 8,089,528.96

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Solution

The fourth proportional to 12,379,392.64, 17,079,182.40 and 8,089,528.96 is: 11,160,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,392.64 : 17,079,182.40 = 8,089,528.96 : x
  2. Step 2: Convert to fraction form
    12,379,392.64/17,079,182.40 = 8,089,528.96/x
  3. Step 3: Cross multiply
    12,379,392.64x = 17,079,182.40 × 8,089,528.96
  4. Step 4: Simplify right side
    12,379,392.64x = 138,162,540,637,922.30
  5. Step 5: Solve for x
    x = 138,162,540,637,922.30/12,379,392.64
  6. Step 6: Final answer
    x = 11,160,688.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.