Home / 15,012,512.76-20,717,304.30-8,136,987.96

Finding the Fourth Proportional to 15,012,512.76, 20,717,304.30 and 8,136,987.96

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Solution

The fourth proportional to 15,012,512.76, 20,717,304.30 and 8,136,987.96 is: 11,229,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012,512.76 : 20,717,304.30 = 8,136,987.96 : x
  2. Step 2: Convert to fraction form
    15,012,512.76/20,717,304.30 = 8,136,987.96/x
  3. Step 3: Cross multiply
    15,012,512.76x = 20,717,304.30 × 8,136,987.96
  4. Step 4: Simplify right side
    15,012,512.76x = 168,576,455,652,756.22
  5. Step 5: Solve for x
    x = 168,576,455,652,756.22/15,012,512.76
  6. Step 6: Final answer
    x = 11,229,063.27

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Double scale
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1.5x scale

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.