Home / 38,812,187,438.91-53,560,818,750.20-20,990,844,942.75

Finding the Fourth Proportional to 38,812,187,438.91, 53,560,818,750.20 and 20,990,844,942.75

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Solution

The fourth proportional to 38,812,187,438.91, 53,560,818,750.20 and 20,990,844,942.75 is: 28,967,366,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,812,187,438.91 : 53,560,818,750.20 = 20,990,844,942.75 : x
  2. Step 2: Convert to fraction form
    38,812,187,438.91/53,560,818,750.20 = 20,990,844,942.75/x
  3. Step 3: Cross multiply
    38,812,187,438.91x = 53,560,818,750.20 × 20,990,844,942.75
  4. Step 4: Simplify right side
    38,812,187,438.91x = 1,124,286,841,392,080,093,184
  5. Step 5: Solve for x
    x = 1,124,286,841,392,080,093,184/38,812,187,438.91
  6. Step 6: Final answer
    x = 28,967,366,066.69

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Double scale
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1.5x scale

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.