Home / 20,371,073,855.14-28,112,083,216.38-11,338,637,517.61

Finding the Fourth Proportional to 20,371,073,855.14, 28,112,083,216.38 and 11,338,637,517.61

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Solution

The fourth proportional to 20,371,073,855.14, 28,112,083,216.38 and 11,338,637,517.61 is: 15,647,320,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371,073,855.14 : 28,112,083,216.38 = 11,338,637,517.61 : x
  2. Step 2: Convert to fraction form
    20,371,073,855.14/28,112,083,216.38 = 11,338,637,517.61/x
  3. Step 3: Cross multiply
    20,371,073,855.14x = 28,112,083,216.38 × 11,338,637,517.61
  4. Step 4: Simplify right side
    20,371,073,855.14x = 318,752,721,455,280,095,232
  5. Step 5: Solve for x
    x = 318,752,721,455,280,095,232/20,371,073,855.14
  6. Step 6: Final answer
    x = 15,647,320,495.82

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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.