Home / 774,343,245.81-1,068,580,224.89-421,922,132.46

Finding the Fourth Proportional to 774,343,245.81, 1,068,580,224.89 and 421,922,132.46

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Solution

The fourth proportional to 774,343,245.81, 1,068,580,224.89 and 421,922,132.46 is: 582,245,211.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,343,245.81 : 1,068,580,224.89 = 421,922,132.46 : x
  2. Step 2: Convert to fraction form
    774,343,245.81/1,068,580,224.89 = 421,922,132.46/x
  3. Step 3: Cross multiply
    774,343,245.81x = 1,068,580,224.89 × 421,922,132.46
  4. Step 4: Simplify right side
    774,343,245.81x = 450,857,647,190,175,168
  5. Step 5: Solve for x
    x = 450,857,647,190,175,168/774,343,245.81
  6. Step 6: Final answer
    x = 582,245,211.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.