Home / 12,372,405.75-18,565,104.02-8,988,668.42

Finding the Fourth Proportional to 12,372,405.75, 18,565,104.02 and 8,988,668.42

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Solution

The fourth proportional to 12,372,405.75, 18,565,104.02 and 8,988,668.42 is: 13,487,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372,405.75 : 18,565,104.02 = 8,988,668.42 : x
  2. Step 2: Convert to fraction form
    12,372,405.75/18,565,104.02 = 8,988,668.42/x
  3. Step 3: Cross multiply
    12,372,405.75x = 18,565,104.02 × 8,988,668.42
  4. Step 4: Simplify right side
    12,372,405.75x = 166,875,564,080,820.19
  5. Step 5: Solve for x
    x = 166,875,564,080,820.19/12,372,405.75
  6. Step 6: Final answer
    x = 13,487,721.58

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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.