Home / 715,751,714.28-1,073,938,462.40-388,458,459.48

Finding the Fourth Proportional to 715,751,714.28, 1,073,938,462.40 and 388,458,459.48

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Solution

The fourth proportional to 715,751,714.28, 1,073,938,462.40 and 388,458,459.48 is: 582,856,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,751,714.28 : 1,073,938,462.40 = 388,458,459.48 : x
  2. Step 2: Convert to fraction form
    715,751,714.28/1,073,938,462.40 = 388,458,459.48/x
  3. Step 3: Cross multiply
    715,751,714.28x = 1,073,938,462.40 × 388,458,459.48
  4. Step 4: Simplify right side
    715,751,714.28x = 417,180,480,680,223,936
  5. Step 5: Solve for x
    x = 417,180,480,680,223,936/715,751,714.28
  6. Step 6: Final answer
    x = 582,856,418.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.