Home / 403,543,521,522.78-556,890,106,918.86-220,640,747,067.42

Finding the Fourth Proportional to 403,543,521,522.78, 556,890,106,918.86 and 220,640,747,067.42

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Solution

The fourth proportional to 403,543,521,522.78, 556,890,106,918.86 and 220,640,747,067.42 is: 304,484,256,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,543,521,522.78 : 556,890,106,918.86 = 220,640,747,067.42 : x
  2. Step 2: Convert to fraction form
    403,543,521,522.78/556,890,106,918.86 = 220,640,747,067.42/x
  3. Step 3: Cross multiply
    403,543,521,522.78x = 556,890,106,918.86 × 220,640,747,067.42
  4. Step 4: Simplify right side
    403,543,521,522.78x = 122,872,649,225,032,679,030,784
  5. Step 5: Solve for x
    x = 122,872,649,225,032,679,030,784/403,543,521,522.78
  6. Step 6: Final answer
    x = 304,484,256,769.56

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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.