Home / 521,615,743.20-780,723,003.60-521,615,743.20

Finding the Fourth Proportional to 521,615,743.20, 780,723,003.60 and 521,615,743.20

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Solution

The fourth proportional to 521,615,743.20, 780,723,003.60 and 521,615,743.20 is: 780,723,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,615,743.20 : 780,723,003.60 = 521,615,743.20 : x
  2. Step 2: Convert to fraction form
    521,615,743.20/780,723,003.60 = 521,615,743.20/x
  3. Step 3: Cross multiply
    521,615,743.20x = 780,723,003.60 × 521,615,743.20
  4. Step 4: Simplify right side
    521,615,743.20x = 407,237,409,756,150,272
  5. Step 5: Solve for x
    x = 407,237,409,756,150,272/521,615,743.20
  6. Step 6: Final answer
    x = 780,723,003.60

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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.