Home / 78,598,954.56-117,768,093.12-47,800,376.40

Finding the Fourth Proportional to 78,598,954.56, 117,768,093.12 and 47,800,376.40

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Solution

The fourth proportional to 78,598,954.56, 117,768,093.12 and 47,800,376.40 is: 71,621,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,598,954.56 : 117,768,093.12 = 47,800,376.40 : x
  2. Step 2: Convert to fraction form
    78,598,954.56/117,768,093.12 = 47,800,376.40/x
  3. Step 3: Cross multiply
    78,598,954.56x = 117,768,093.12 × 47,800,376.40
  4. Step 4: Simplify right side
    78,598,954.56x = 5,629,359,179,046,250
  5. Step 5: Solve for x
    x = 5,629,359,179,046,250/78,598,954.56
  6. Step 6: Final answer
    x = 71,621,298.41

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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.