Home / 78,313,153.44-108,082,116.96-47,373,544.32

Finding the Fourth Proportional to 78,313,153.44, 108,082,116.96 and 47,373,544.32

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Solution

The fourth proportional to 78,313,153.44, 108,082,116.96 and 47,373,544.32 is: 65,381,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,313,153.44 : 108,082,116.96 = 47,373,544.32 : x
  2. Step 2: Convert to fraction form
    78,313,153.44/108,082,116.96 = 47,373,544.32/x
  3. Step 3: Cross multiply
    78,313,153.44x = 108,082,116.96 × 47,373,544.32
  4. Step 4: Simplify right side
    78,313,153.44x = 5,120,232,958,003,983
  5. Step 5: Solve for x
    x = 5,120,232,958,003,983/78,313,153.44
  6. Step 6: Final answer
    x = 65,381,519.36

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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.