Home / 445,824,009.70-668,736,014.55-413,538,968.95

Finding the Fourth Proportional to 445,824,009.70, 668,736,014.55 and 413,538,968.95

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Solution

The fourth proportional to 445,824,009.70, 668,736,014.55 and 413,538,968.95 is: 620,308,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,824,009.70 : 668,736,014.55 = 413,538,968.95 : x
  2. Step 2: Convert to fraction form
    445,824,009.70/668,736,014.55 = 413,538,968.95/x
  3. Step 3: Cross multiply
    445,824,009.70x = 668,736,014.55 × 413,538,968.95
  4. Step 4: Simplify right side
    445,824,009.70x = 276,548,401,956,739,168
  5. Step 5: Solve for x
    x = 276,548,401,956,739,168/445,824,009.70
  6. Step 6: Final answer
    x = 620,308,453.43

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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.