Home / 8,143,611.60-12,215,417.40-7,956,987.60

Finding the Fourth Proportional to 8,143,611.60, 12,215,417.40 and 7,956,987.60

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Solution

The fourth proportional to 8,143,611.60, 12,215,417.40 and 7,956,987.60 is: 11,935,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,611.60 : 12,215,417.40 = 7,956,987.60 : x
  2. Step 2: Convert to fraction form
    8,143,611.60/12,215,417.40 = 7,956,987.60/x
  3. Step 3: Cross multiply
    8,143,611.60x = 12,215,417.40 × 7,956,987.60
  4. Step 4: Simplify right side
    8,143,611.60x = 97,197,924,780,624.23
  5. Step 5: Solve for x
    x = 97,197,924,780,624.23/8,143,611.60
  6. Step 6: Final answer
    x = 11,935,481.40

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Double scale
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Similar ratio
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1.5x scale

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.