Home / 8,735,786.90-13,103,680.35-7,811,998.10

Finding the Fourth Proportional to 8,735,786.90, 13,103,680.35 and 7,811,998.10

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Solution

The fourth proportional to 8,735,786.90, 13,103,680.35 and 7,811,998.10 is: 11,717,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735,786.90 : 13,103,680.35 = 7,811,998.10 : x
  2. Step 2: Convert to fraction form
    8,735,786.90/13,103,680.35 = 7,811,998.10/x
  3. Step 3: Cross multiply
    8,735,786.90x = 13,103,680.35 × 7,811,998.10
  4. Step 4: Simplify right side
    8,735,786.90x = 102,365,925,997,207.33
  5. Step 5: Solve for x
    x = 102,365,925,997,207.33/8,735,786.90
  6. Step 6: Final answer
    x = 11,717,997.15

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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.