Home / 579,862,517.60-800,210,404.78-319,102,133.60

Finding the Fourth Proportional to 579,862,517.60, 800,210,404.78 and 319,102,133.60

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Solution

The fourth proportional to 579,862,517.60, 800,210,404.78 and 319,102,133.60 is: 440,361,016.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,862,517.60 : 800,210,404.78 = 319,102,133.60 : x
  2. Step 2: Convert to fraction form
    579,862,517.60/800,210,404.78 = 319,102,133.60/x
  3. Step 3: Cross multiply
    579,862,517.60x = 800,210,404.78 × 319,102,133.60
  4. Step 4: Simplify right side
    579,862,517.60x = 255,348,847,494,217,664
  5. Step 5: Solve for x
    x = 255,348,847,494,217,664/579,862,517.60
  6. Step 6: Final answer
    x = 440,361,016.18

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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.