Home / 664,302,439.40-996,453,659.10-660,476,064.20

Finding the Fourth Proportional to 664,302,439.40, 996,453,659.10 and 660,476,064.20

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Solution

The fourth proportional to 664,302,439.40, 996,453,659.10 and 660,476,064.20 is: 990,714,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,439.40 : 996,453,659.10 = 660,476,064.20 : x
  2. Step 2: Convert to fraction form
    664,302,439.40/996,453,659.10 = 660,476,064.20/x
  3. Step 3: Cross multiply
    664,302,439.40x = 996,453,659.10 × 660,476,064.20
  4. Step 4: Simplify right side
    664,302,439.40x = 658,133,790,920,056,576
  5. Step 5: Solve for x
    x = 658,133,790,920,056,576/664,302,439.40
  6. Step 6: Final answer
    x = 990,714,096.30

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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.