Home / 403,728,259,644.90-557,316,548,102.40-251,556,271,424.20

Finding the Fourth Proportional to 403,728,259,644.90, 557,316,548,102.40 and 251,556,271,424.20

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Solution

The fourth proportional to 403,728,259,644.90, 557,316,548,102.40 and 251,556,271,424.20 is: 347,254,544,348.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,728,259,644.90 : 557,316,548,102.40 = 251,556,271,424.20 : x
  2. Step 2: Convert to fraction form
    403,728,259,644.90/557,316,548,102.40 = 251,556,271,424.20/x
  3. Step 3: Cross multiply
    403,728,259,644.90x = 557,316,548,102.40 × 251,556,271,424.20
  4. Step 4: Simplify right side
    403,728,259,644.90x = 140,196,472,843,645,560,553,472
  5. Step 5: Solve for x
    x = 140,196,472,843,645,560,553,472/403,728,259,644.90
  6. Step 6: Final answer
    x = 347,254,544,348.61

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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.