Home / 100,714,740,621.12-138,998,529,605.88-57,321,575,909.64

Finding the Fourth Proportional to 100,714,740,621.12, 138,998,529,605.88 and 57,321,575,909.64

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Solution

The fourth proportional to 100,714,740,621.12, 138,998,529,605.88 and 57,321,575,909.64 is: 79,110,711,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,714,740,621.12 : 138,998,529,605.88 = 57,321,575,909.64 : x
  2. Step 2: Convert to fraction form
    100,714,740,621.12/138,998,529,605.88 = 57,321,575,909.64/x
  3. Step 3: Cross multiply
    100,714,740,621.12x = 138,998,529,605.88 × 57,321,575,909.64
  4. Step 4: Simplify right side
    100,714,740,621.12x = 7,967,614,766,131,793,887,232
  5. Step 5: Solve for x
    x = 7,967,614,766,131,793,887,232/100,714,740,621.12
  6. Step 6: Final answer
    x = 79,110,711,272.20

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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.