Home / 1,215,533,667.44-1,677,307,321.22-672,288,286.38

Finding the Fourth Proportional to 1,215,533,667.44, 1,677,307,321.22 and 672,288,286.38

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Solution

The fourth proportional to 1,215,533,667.44, 1,677,307,321.22 and 672,288,286.38 is: 927,686,410.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,533,667.44 : 1,677,307,321.22 = 672,288,286.38 : x
  2. Step 2: Convert to fraction form
    1,215,533,667.44/1,677,307,321.22 = 672,288,286.38/x
  3. Step 3: Cross multiply
    1,215,533,667.44x = 1,677,307,321.22 × 672,288,286.38
  4. Step 4: Simplify right side
    1,215,533,667.44x = 1,127,634,064,719,212,160
  5. Step 5: Solve for x
    x = 1,127,634,064,719,212,160/1,215,533,667.44
  6. Step 6: Final answer
    x = 927,686,410.44

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Half scale
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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.