Home / 638,550,009,449.43-881,204,508,308.15-364,209,558,015.12

Finding the Fourth Proportional to 638,550,009,449.43, 881,204,508,308.15 and 364,209,558,015.12

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Solution

The fourth proportional to 638,550,009,449.43, 881,204,508,308.15 and 364,209,558,015.12 is: 502,612,324,395.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,550,009,449.43 : 881,204,508,308.15 = 364,209,558,015.12 : x
  2. Step 2: Convert to fraction form
    638,550,009,449.43/881,204,508,308.15 = 364,209,558,015.12/x
  3. Step 3: Cross multiply
    638,550,009,449.43x = 881,204,508,308.15 × 364,209,558,015.12
  4. Step 4: Simplify right side
    638,550,009,449.43x = 320,943,104,491,842,441,314,304
  5. Step 5: Solve for x
    x = 320,943,104,491,842,441,314,304/638,550,009,449.43
  6. Step 6: Final answer
    x = 502,612,324,395.02

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Double scale
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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.