Home / 12,293,403.90-18,440,105.85-9,307,419.90

Finding the Fourth Proportional to 12,293,403.90, 18,440,105.85 and 9,307,419.90

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Solution

The fourth proportional to 12,293,403.90, 18,440,105.85 and 9,307,419.90 is: 13,961,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293,403.90 : 18,440,105.85 = 9,307,419.90 : x
  2. Step 2: Convert to fraction form
    12,293,403.90/18,440,105.85 = 9,307,419.90/x
  3. Step 3: Cross multiply
    12,293,403.90x = 18,440,105.85 × 9,307,419.90
  4. Step 4: Simplify right side
    12,293,403.90x = 171,629,808,146,396.44
  5. Step 5: Solve for x
    x = 171,629,808,146,396.44/12,293,403.90
  6. Step 6: Final answer
    x = 13,961,129.85

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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.