Home / 76,128,030.72-105,056,788.68-41,320,728.36

Finding the Fourth Proportional to 76,128,030.72, 105,056,788.68 and 41,320,728.36

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Solution

The fourth proportional to 76,128,030.72, 105,056,788.68 and 41,320,728.36 is: 57,022,662.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128,030.72 : 105,056,788.68 = 41,320,728.36 : x
  2. Step 2: Convert to fraction form
    76,128,030.72/105,056,788.68 = 41,320,728.36/x
  3. Step 3: Cross multiply
    76,128,030.72x = 105,056,788.68 × 41,320,728.36
  4. Step 4: Simplify right side
    76,128,030.72x = 4,341,023,027,420,203
  5. Step 5: Solve for x
    x = 4,341,023,027,420,203/76,128,030.72
  6. Step 6: Final answer
    x = 57,022,662.83

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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.