Home / 681,163,764.60-1,021,745,646.90-298,957,812.60

Finding the Fourth Proportional to 681,163,764.60, 1,021,745,646.90 and 298,957,812.60

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Solution

The fourth proportional to 681,163,764.60, 1,021,745,646.90 and 298,957,812.60 is: 448,436,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,163,764.60 : 1,021,745,646.90 = 298,957,812.60 : x
  2. Step 2: Convert to fraction form
    681,163,764.60/1,021,745,646.90 = 298,957,812.60/x
  3. Step 3: Cross multiply
    681,163,764.60x = 1,021,745,646.90 × 298,957,812.60
  4. Step 4: Simplify right side
    681,163,764.60x = 305,458,843,630,795,968
  5. Step 5: Solve for x
    x = 305,458,843,630,795,968/681,163,764.60
  6. Step 6: Final answer
    x = 448,436,718.90

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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.