Home / 515,466,882.04-711,367,721.24-303,782,646.60

Finding the Fourth Proportional to 515,466,882.04, 711,367,721.24 and 303,782,646.60

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Solution

The fourth proportional to 515,466,882.04, 711,367,721.24 and 303,782,646.60 is: 419,233,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,466,882.04 : 711,367,721.24 = 303,782,646.60 : x
  2. Step 2: Convert to fraction form
    515,466,882.04/711,367,721.24 = 303,782,646.60/x
  3. Step 3: Cross multiply
    515,466,882.04x = 711,367,721.24 × 303,782,646.60
  4. Step 4: Simplify right side
    515,466,882.04x = 216,101,169,064,098,240
  5. Step 5: Solve for x
    x = 216,101,169,064,098,240/515,466,882.04
  6. Step 6: Final answer
    x = 419,233,856.90

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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.