Home / 445,824,023.20-668,736,034.80-413,538,982.45

Finding the Fourth Proportional to 445,824,023.20, 668,736,034.80 and 413,538,982.45

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Solution

The fourth proportional to 445,824,023.20, 668,736,034.80 and 413,538,982.45 is: 620,308,473.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,824,023.20 : 668,736,034.80 = 413,538,982.45 : x
  2. Step 2: Convert to fraction form
    445,824,023.20/668,736,034.80 = 413,538,982.45/x
  3. Step 3: Cross multiply
    445,824,023.20x = 668,736,034.80 × 413,538,982.45
  4. Step 4: Simplify right side
    445,824,023.20x = 276,548,419,358,839,776
  5. Step 5: Solve for x
    x = 276,548,419,358,839,776/445,824,023.20
  6. Step 6: Final answer
    x = 620,308,473.68

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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.