Home / 78,490,608.56-108,317,041.32-43,691,519.76

Finding the Fourth Proportional to 78,490,608.56, 108,317,041.32 and 43,691,519.76

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Solution

The fourth proportional to 78,490,608.56, 108,317,041.32 and 43,691,519.76 is: 60,294,298.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,490,608.56 : 108,317,041.32 = 43,691,519.76 : x
  2. Step 2: Convert to fraction form
    78,490,608.56/108,317,041.32 = 43,691,519.76/x
  3. Step 3: Cross multiply
    78,490,608.56x = 108,317,041.32 × 43,691,519.76
  4. Step 4: Simplify right side
    78,490,608.56x = 4,732,536,151,177,516
  5. Step 5: Solve for x
    x = 4,732,536,151,177,516/78,490,608.56
  6. Step 6: Final answer
    x = 60,294,298.11

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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.