Home / 20,162,689,978.80-30,244,034,968.20-5,440,687,777.20

Finding the Fourth Proportional to 20,162,689,978.80, 30,244,034,968.20 and 5,440,687,777.20

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Solution

The fourth proportional to 20,162,689,978.80, 30,244,034,968.20 and 5,440,687,777.20 is: 8,161,031,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162,689,978.80 : 30,244,034,968.20 = 5,440,687,777.20 : x
  2. Step 2: Convert to fraction form
    20,162,689,978.80/30,244,034,968.20 = 5,440,687,777.20/x
  3. Step 3: Cross multiply
    20,162,689,978.80x = 30,244,034,968.20 × 5,440,687,777.20
  4. Step 4: Simplify right side
    20,162,689,978.80x = 164,548,351,384,695,144,448
  5. Step 5: Solve for x
    x = 164,548,351,384,695,144,448/20,162,689,978.80
  6. Step 6: Final answer
    x = 8,161,031,665.80

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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.