Home / 18,685,693,131.68-28,028,612,414.46-4,520,636,153.64

Finding the Fourth Proportional to 18,685,693,131.68, 28,028,612,414.46 and 4,520,636,153.64

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Solution

The fourth proportional to 18,685,693,131.68, 28,028,612,414.46 and 4,520,636,153.64 is: 6,780,971,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685,693,131.68 : 28,028,612,414.46 = 4,520,636,153.64 : x
  2. Step 2: Convert to fraction form
    18,685,693,131.68/28,028,612,414.46 = 4,520,636,153.64/x
  3. Step 3: Cross multiply
    18,685,693,131.68x = 28,028,612,414.46 × 4,520,636,153.64
  4. Step 4: Simplify right side
    18,685,693,131.68x = 126,707,158,617,170,821,120
  5. Step 5: Solve for x
    x = 126,707,158,617,170,821,120/18,685,693,131.68
  6. Step 6: Final answer
    x = 6,780,971,822.90

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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.