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Finding the Fourth Proportional to 12,293,596.80, 18,398,404.80 and 10,781,942.40

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Solution

The fourth proportional to 12,293,596.80, 18,398,404.80 and 10,781,942.40 is: 16,136,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293,596.80 : 18,398,404.80 = 10,781,942.40 : x
  2. Step 2: Convert to fraction form
    12,293,596.80/18,398,404.80 = 10,781,942.40/x
  3. Step 3: Cross multiply
    12,293,596.80x = 18,398,404.80 × 10,781,942.40
  4. Step 4: Simplify right side
    12,293,596.80x = 198,370,540,805,483.53
  5. Step 5: Solve for x
    x = 198,370,540,805,483.53/12,293,596.80
  6. Step 6: Final answer
    x = 16,136,086.45

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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.