Home / 18,511,938.80-27,767,908.20-8,946,000.80

Finding the Fourth Proportional to 18,511,938.80, 27,767,908.20 and 8,946,000.80

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Solution

The fourth proportional to 18,511,938.80, 27,767,908.20 and 8,946,000.80 is: 13,419,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511,938.80 : 27,767,908.20 = 8,946,000.80 : x
  2. Step 2: Convert to fraction form
    18,511,938.80/27,767,908.20 = 8,946,000.80/x
  3. Step 3: Cross multiply
    18,511,938.80x = 27,767,908.20 × 8,946,000.80
  4. Step 4: Simplify right side
    18,511,938.80x = 248,411,728,971,526.56
  5. Step 5: Solve for x
    x = 248,411,728,971,526.56/18,511,938.80
  6. Step 6: Final answer
    x = 13,419,001.20

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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.