Home / 8,342,021.70-12,513,032.55-6,550,431.30

Finding the Fourth Proportional to 8,342,021.70, 12,513,032.55 and 6,550,431.30

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Solution

The fourth proportional to 8,342,021.70, 12,513,032.55 and 6,550,431.30 is: 9,825,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342,021.70 : 12,513,032.55 = 6,550,431.30 : x
  2. Step 2: Convert to fraction form
    8,342,021.70/12,513,032.55 = 6,550,431.30/x
  3. Step 3: Cross multiply
    8,342,021.70x = 12,513,032.55 × 6,550,431.30
  4. Step 4: Simplify right side
    8,342,021.70x = 81,965,760,073,438.81
  5. Step 5: Solve for x
    x = 81,965,760,073,438.81/8,342,021.70
  6. Step 6: Final answer
    x = 9,825,646.95

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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.