Home / 20,915,946.42-28,864,706.97-11,623,908.30

Finding the Fourth Proportional to 20,915,946.42, 28,864,706.97 and 11,623,908.30

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Solution

The fourth proportional to 20,915,946.42, 28,864,706.97 and 11,623,908.30 is: 16,041,382.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,946.42 : 28,864,706.97 = 11,623,908.30 : x
  2. Step 2: Convert to fraction form
    20,915,946.42/28,864,706.97 = 11,623,908.30/x
  3. Step 3: Cross multiply
    20,915,946.42x = 28,864,706.97 × 11,623,908.30
  4. Step 4: Simplify right side
    20,915,946.42x = 335,520,706,925,650.88
  5. Step 5: Solve for x
    x = 335,520,706,925,650.88/20,915,946.42
  6. Step 6: Final answer
    x = 16,041,382.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.