Home / 515,466,898.92-711,367,744.77-303,782,663.70

Finding the Fourth Proportional to 515,466,898.92, 711,367,744.77 and 303,782,663.70

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Solution

The fourth proportional to 515,466,898.92, 711,367,744.77 and 303,782,663.70 is: 419,233,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,466,898.92 : 711,367,744.77 = 303,782,663.70 : x
  2. Step 2: Convert to fraction form
    515,466,898.92/711,367,744.77 = 303,782,663.70/x
  3. Step 3: Cross multiply
    515,466,898.92x = 711,367,744.77 × 303,782,663.70
  4. Step 4: Simplify right side
    515,466,898.92x = 216,101,188,376,492,320
  5. Step 5: Solve for x
    x = 216,101,188,376,492,320/515,466,898.92
  6. Step 6: Final answer
    x = 419,233,880.64

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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.