Home / 515,808,754.80-774,030,340.35-204,861,969.60

Finding the Fourth Proportional to 515,808,754.80, 774,030,340.35 and 204,861,969.60

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Solution

The fourth proportional to 515,808,754.80, 774,030,340.35 and 204,861,969.60 is: 307,418,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,808,754.80 : 774,030,340.35 = 204,861,969.60 : x
  2. Step 2: Convert to fraction form
    515,808,754.80/774,030,340.35 = 204,861,969.60/x
  3. Step 3: Cross multiply
    515,808,754.80x = 774,030,340.35 × 204,861,969.60
  4. Step 4: Simplify right side
    515,808,754.80x = 158,569,380,054,259,360
  5. Step 5: Solve for x
    x = 158,569,380,054,259,360/515,808,754.80
  6. Step 6: Final answer
    x = 307,418,938.86

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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.