Home / 81,004,412.41-111,786,383.45-43,834,688.77

Finding the Fourth Proportional to 81,004,412.41, 111,786,383.45 and 43,834,688.77

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Solution

The fourth proportional to 81,004,412.41, 111,786,383.45 and 43,834,688.77 is: 60,492,029.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,004,412.41 : 111,786,383.45 = 43,834,688.77 : x
  2. Step 2: Convert to fraction form
    81,004,412.41/111,786,383.45 = 43,834,688.77/x
  3. Step 3: Cross multiply
    81,004,412.41x = 111,786,383.45 × 43,834,688.77
  4. Step 4: Simplify right side
    81,004,412.41x = 4,900,121,327,084,749
  5. Step 5: Solve for x
    x = 4,900,121,327,084,749/81,004,412.41
  6. Step 6: Final answer
    x = 60,492,029.77

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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.