Home / 285,629,118,295.80-394,156,286,863.74-155,418,484,235.22

Finding the Fourth Proportional to 285,629,118,295.80, 394,156,286,863.74 and 155,418,484,235.22

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Solution

The fourth proportional to 285,629,118,295.80, 394,156,286,863.74 and 155,418,484,235.22 is: 214,471,035,101.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,629,118,295.80 : 394,156,286,863.74 = 155,418,484,235.22 : x
  2. Step 2: Convert to fraction form
    285,629,118,295.80/394,156,286,863.74 = 155,418,484,235.22/x
  3. Step 3: Cross multiply
    285,629,118,295.80x = 394,156,286,863.74 × 155,418,484,235.22
  4. Step 4: Simplify right side
    285,629,118,295.80x = 61,259,172,656,145,028,349,952
  5. Step 5: Solve for x
    x = 61,259,172,656,145,028,349,952/285,629,118,295.80
  6. Step 6: Final answer
    x = 214,471,035,101.91

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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.