Home / 79,214,621.70-118,821,932.55-76,344,840.30

Finding the Fourth Proportional to 79,214,621.70, 118,821,932.55 and 76,344,840.30

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Solution

The fourth proportional to 79,214,621.70, 118,821,932.55 and 76,344,840.30 is: 114,517,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214,621.70 : 118,821,932.55 = 76,344,840.30 : x
  2. Step 2: Convert to fraction form
    79,214,621.70/118,821,932.55 = 76,344,840.30/x
  3. Step 3: Cross multiply
    79,214,621.70x = 118,821,932.55 × 76,344,840.30
  4. Step 4: Simplify right side
    79,214,621.70x = 9,071,441,464,667,122
  5. Step 5: Solve for x
    x = 9,071,441,464,667,122/79,214,621.70
  6. Step 6: Final answer
    x = 114,517,260.45

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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.