Home / 39,782,562,089.12-54,899,656,400.25-21,718,078,299.12

Finding the Fourth Proportional to 39,782,562,089.12, 54,899,656,400.25 and 21,718,078,299.12

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Solution

The fourth proportional to 39,782,562,089.12, 54,899,656,400.25 and 21,718,078,299.12 is: 29,970,795,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782,562,089.12 : 54,899,656,400.25 = 21,718,078,299.12 : x
  2. Step 2: Convert to fraction form
    39,782,562,089.12/54,899,656,400.25 = 21,718,078,299.12/x
  3. Step 3: Cross multiply
    39,782,562,089.12x = 54,899,656,400.25 × 21,718,078,299.12
  4. Step 4: Simplify right side
    39,782,562,089.12x = 1,192,315,036,295,413,891,072
  5. Step 5: Solve for x
    x = 1,192,315,036,295,413,891,072/39,782,562,089.12
  6. Step 6: Final answer
    x = 29,970,795,586.88

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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.