Home / 15,178,045,177,792-20,945,702,345,358-8,682,165,838,728

Finding the Fourth Proportional to 15,178,045,177,792, 20,945,702,345,358 and 8,682,165,838,728

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Solution

The fourth proportional to 15,178,045,177,792, 20,945,702,345,358 and 8,682,165,838,728 is: 11,981,388,857,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178,045,177,792 : 20,945,702,345,358 = 8,682,165,838,728 : x
  2. Step 2: Convert to fraction form
    15,178,045,177,792/20,945,702,345,358 = 8,682,165,838,728/x
  3. Step 3: Cross multiply
    15,178,045,177,792x = 20,945,702,345,358 × 8,682,165,838,728
  4. Step 4: Simplify right side
    15,178,045,177,792x = 181,854,061,371,032,164,250,943,488
  5. Step 5: Solve for x
    x = 181,854,061,371,032,164,250,943,488/15,178,045,177,792
  6. Step 6: Final answer
    x = 11,981,388,857,447.52

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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.