Home / 320,007,120.39-480,007,181.39-77,670,024.39

Finding the Fourth Proportional to 320,007,120.39, 480,007,181.39 and 77,670,024.39

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Solution

The fourth proportional to 320,007,120.39, 480,007,181.39 and 77,670,024.39 is: 116,504,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,007,120.39 : 480,007,181.39 = 77,670,024.39 : x
  2. Step 2: Convert to fraction form
    320,007,120.39/480,007,181.39 = 77,670,024.39/x
  3. Step 3: Cross multiply
    320,007,120.39x = 480,007,181.39 × 77,670,024.39
  4. Step 4: Simplify right side
    320,007,120.39x = 37,282,169,485,548,104
  5. Step 5: Solve for x
    x = 37,282,169,485,548,104/320,007,120.39
  6. Step 6: Final answer
    x = 116,504,187.28

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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.