Home / 403,728,259,642.90-557,316,548,099.64-251,556,271,422.20

Finding the Fourth Proportional to 403,728,259,642.90, 557,316,548,099.64 and 251,556,271,422.20

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Solution

The fourth proportional to 403,728,259,642.90, 557,316,548,099.64 and 251,556,271,422.20 is: 347,254,544,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,728,259,642.90 : 557,316,548,099.64 = 251,556,271,422.20 : x
  2. Step 2: Convert to fraction form
    403,728,259,642.90/557,316,548,099.64 = 251,556,271,422.20/x
  3. Step 3: Cross multiply
    403,728,259,642.90x = 557,316,548,099.64 × 251,556,271,422.20
  4. Step 4: Simplify right side
    403,728,259,642.90x = 140,196,472,841,836,624,347,136
  5. Step 5: Solve for x
    x = 140,196,472,841,836,624,347,136/403,728,259,642.90
  6. Step 6: Final answer
    x = 347,254,544,345.85

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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.