Home / 521,772,937.20-782,659,405.80-496,263,769.20

Finding the Fourth Proportional to 521,772,937.20, 782,659,405.80 and 496,263,769.20

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Solution

The fourth proportional to 521,772,937.20, 782,659,405.80 and 496,263,769.20 is: 744,395,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,772,937.20 : 782,659,405.80 = 496,263,769.20 : x
  2. Step 2: Convert to fraction form
    521,772,937.20/782,659,405.80 = 496,263,769.20/x
  3. Step 3: Cross multiply
    521,772,937.20x = 782,659,405.80 × 496,263,769.20
  4. Step 4: Simplify right side
    521,772,937.20x = 388,405,506,722,140,288
  5. Step 5: Solve for x
    x = 388,405,506,722,140,288/521,772,937.20
  6. Step 6: Final answer
    x = 744,395,653.80

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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.