Home / 579,470,169.90-868,906,656.45-215,777,318.70

Finding the Fourth Proportional to 579,470,169.90, 868,906,656.45 and 215,777,318.70

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Solution

The fourth proportional to 579,470,169.90, 868,906,656.45 and 215,777,318.70 is: 323,554,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,470,169.90 : 868,906,656.45 = 215,777,318.70 : x
  2. Step 2: Convert to fraction form
    579,470,169.90/868,906,656.45 = 215,777,318.70/x
  3. Step 3: Cross multiply
    579,470,169.90x = 868,906,656.45 × 215,777,318.70
  4. Step 4: Simplify right side
    579,470,169.90x = 187,490,348,529,363,072
  5. Step 5: Solve for x
    x = 187,490,348,529,363,072/579,470,169.90
  6. Step 6: Final answer
    x = 323,554,788.96

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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.