Home / 490,029,712.80-734,831,992.80-162,378,621.60

Finding the Fourth Proportional to 490,029,712.80, 734,831,992.80 and 162,378,621.60

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Solution

The fourth proportional to 490,029,712.80, 734,831,992.80 and 162,378,621.60 is: 243,497,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,029,712.80 : 734,831,992.80 = 162,378,621.60 : x
  2. Step 2: Convert to fraction form
    490,029,712.80/734,831,992.80 = 162,378,621.60/x
  3. Step 3: Cross multiply
    490,029,712.80x = 734,831,992.80 × 162,378,621.60
  4. Step 4: Simplify right side
    490,029,712.80x = 119,321,006,098,445,120
  5. Step 5: Solve for x
    x = 119,321,006,098,445,120/490,029,712.80
  6. Step 6: Final answer
    x = 243,497,492.05

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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.