Home / 82,774,629,943.72-124,161,944,775.45-19,889,928,461.62

Finding the Fourth Proportional to 82,774,629,943.72, 124,161,944,775.45 and 19,889,928,461.62

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Solution

The fourth proportional to 82,774,629,943.72, 124,161,944,775.45 and 19,889,928,461.62 is: 29,834,892,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,774,629,943.72 : 124,161,944,775.45 = 19,889,928,461.62 : x
  2. Step 2: Convert to fraction form
    82,774,629,943.72/124,161,944,775.45 = 19,889,928,461.62/x
  3. Step 3: Cross multiply
    82,774,629,943.72x = 124,161,944,775.45 × 19,889,928,461.62
  4. Step 4: Simplify right side
    82,774,629,943.72x = 2,469,572,199,239,562,297,344
  5. Step 5: Solve for x
    x = 2,469,572,199,239,562,297,344/82,774,629,943.72
  6. Step 6: Final answer
    x = 29,834,892,658.76

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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.