Home / 20,555,418,440.46-30,827,146,088.45-7,961,467,963.19

Finding the Fourth Proportional to 20,555,418,440.46, 30,827,146,088.45 and 7,961,467,963.19

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Solution

The fourth proportional to 20,555,418,440.46, 30,827,146,088.45 and 7,961,467,963.19 is: 11,939,885,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555,418,440.46 : 30,827,146,088.45 = 7,961,467,963.19 : x
  2. Step 2: Convert to fraction form
    20,555,418,440.46/30,827,146,088.45 = 7,961,467,963.19/x
  3. Step 3: Cross multiply
    20,555,418,440.46x = 30,827,146,088.45 × 7,961,467,963.19
  4. Step 4: Simplify right side
    20,555,418,440.46x = 245,429,335,979,865,604,096
  5. Step 5: Solve for x
    x = 245,429,335,979,865,604,096/20,555,418,440.46
  6. Step 6: Final answer
    x = 11,939,885,178.73

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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.