Home / 445,845,621.60-668,768,432.40-331,054,365.60

Finding the Fourth Proportional to 445,845,621.60, 668,768,432.40 and 331,054,365.60

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Solution

The fourth proportional to 445,845,621.60, 668,768,432.40 and 331,054,365.60 is: 496,581,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,845,621.60 : 668,768,432.40 = 331,054,365.60 : x
  2. Step 2: Convert to fraction form
    445,845,621.60/668,768,432.40 = 331,054,365.60/x
  3. Step 3: Cross multiply
    445,845,621.60x = 668,768,432.40 × 331,054,365.60
  4. Step 4: Simplify right side
    445,845,621.60x = 221,398,709,121,488,480
  5. Step 5: Solve for x
    x = 221,398,709,121,488,480/445,845,621.60
  6. Step 6: Final answer
    x = 496,581,548.40

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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.