Home / 664,071,660.47-997,619,145.12-480,405,650.87

Finding the Fourth Proportional to 664,071,660.47, 997,619,145.12 and 480,405,650.87

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Solution

The fourth proportional to 664,071,660.47, 997,619,145.12 and 480,405,650.87 is: 721,702,044.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,071,660.47 : 997,619,145.12 = 480,405,650.87 : x
  2. Step 2: Convert to fraction form
    664,071,660.47/997,619,145.12 = 480,405,650.87/x
  3. Step 3: Cross multiply
    664,071,660.47x = 997,619,145.12 × 480,405,650.87
  4. Step 4: Simplify right side
    664,071,660.47x = 479,261,874,734,240,640
  5. Step 5: Solve for x
    x = 479,261,874,734,240,640/664,071,660.47
  6. Step 6: Final answer
    x = 721,702,044.01

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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.