Home / 672,463,973.70-1,008,695,960.55-328,090,205.70

Finding the Fourth Proportional to 672,463,973.70, 1,008,695,960.55 and 328,090,205.70

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Solution

The fourth proportional to 672,463,973.70, 1,008,695,960.55 and 328,090,205.70 is: 492,135,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,463,973.70 : 1,008,695,960.55 = 328,090,205.70 : x
  2. Step 2: Convert to fraction form
    672,463,973.70/1,008,695,960.55 = 328,090,205.70/x
  3. Step 3: Cross multiply
    672,463,973.70x = 1,008,695,960.55 × 328,090,205.70
  4. Step 4: Simplify right side
    672,463,973.70x = 330,943,265,185,608,576
  5. Step 5: Solve for x
    x = 330,943,265,185,608,576/672,463,973.70
  6. Step 6: Final answer
    x = 492,135,308.55

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Double scale
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Similar ratio
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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.