Home / 579,470,179.40-868,906,670.70-215,777,328.20

Finding the Fourth Proportional to 579,470,179.40, 868,906,670.70 and 215,777,328.20

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Solution

The fourth proportional to 579,470,179.40, 868,906,670.70 and 215,777,328.20 is: 323,554,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,470,179.40 : 868,906,670.70 = 215,777,328.20 : x
  2. Step 2: Convert to fraction form
    579,470,179.40/868,906,670.70 = 215,777,328.20/x
  3. Step 3: Cross multiply
    579,470,179.40x = 868,906,670.70 × 215,777,328.20
  4. Step 4: Simplify right side
    579,470,179.40x = 187,490,359,858,803,232
  5. Step 5: Solve for x
    x = 187,490,359,858,803,232/579,470,179.40
  6. Step 6: Final answer
    x = 323,554,803.20

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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.