Home / 21,307,383,885.46-31,968,173,882.57-7,143,751,156.54

Finding the Fourth Proportional to 21,307,383,885.46, 31,968,173,882.57 and 7,143,751,156.54

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Solution

The fourth proportional to 21,307,383,885.46, 31,968,173,882.57 and 7,143,751,156.54 is: 10,718,006,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307,383,885.46 : 31,968,173,882.57 = 7,143,751,156.54 : x
  2. Step 2: Convert to fraction form
    21,307,383,885.46/31,968,173,882.57 = 7,143,751,156.54/x
  3. Step 3: Cross multiply
    21,307,383,885.46x = 31,968,173,882.57 × 7,143,751,156.54
  4. Step 4: Simplify right side
    21,307,383,885.46x = 228,372,679,146,081,255,424
  5. Step 5: Solve for x
    x = 228,372,679,146,081,255,424/21,307,383,885.46
  6. Step 6: Final answer
    x = 10,718,006,507.68

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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.