Home / 664,301,979.90-996,452,969.85-492,115,095.90

Finding the Fourth Proportional to 664,301,979.90, 996,452,969.85 and 492,115,095.90

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Solution

The fourth proportional to 664,301,979.90, 996,452,969.85 and 492,115,095.90 is: 738,172,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,301,979.90 : 996,452,969.85 = 492,115,095.90 : x
  2. Step 2: Convert to fraction form
    664,301,979.90/996,452,969.85 = 492,115,095.90/x
  3. Step 3: Cross multiply
    664,301,979.90x = 996,452,969.85 × 492,115,095.90
  4. Step 4: Simplify right side
    664,301,979.90x = 490,369,548,817,572,544
  5. Step 5: Solve for x
    x = 490,369,548,817,572,544/664,301,979.90
  6. Step 6: Final answer
    x = 738,172,643.85

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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.