Home / 12,891,430.40-19,351,142.40-8,104,524.80

Finding the Fourth Proportional to 12,891,430.40, 19,351,142.40 and 8,104,524.80

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Solution

The fourth proportional to 12,891,430.40, 19,351,142.40 and 8,104,524.80 is: 12,165,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891,430.40 : 19,351,142.40 = 8,104,524.80 : x
  2. Step 2: Convert to fraction form
    12,891,430.40/19,351,142.40 = 8,104,524.80/x
  3. Step 3: Cross multiply
    12,891,430.40x = 19,351,142.40 × 8,104,524.80
  4. Step 4: Simplify right side
    12,891,430.40x = 156,831,813,489,131.50
  5. Step 5: Solve for x
    x = 156,831,813,489,131.50/12,891,430.40
  6. Step 6: Final answer
    x = 12,165,586.64

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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.