Home / 81,187,674,942.88-121,786,166,312-21,494,786,091.52

Finding the Fourth Proportional to 81,187,674,942.88, 121,786,166,312 and 21,494,786,091.52

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Solution

The fourth proportional to 81,187,674,942.88, 121,786,166,312 and 21,494,786,091.52 is: 32,243,411,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,187,674,942.88 : 121,786,166,312 = 21,494,786,091.52 : x
  2. Step 2: Convert to fraction form
    81,187,674,942.88/121,786,166,312 = 21,494,786,091.52/x
  3. Step 3: Cross multiply
    81,187,674,942.88x = 121,786,166,312 × 21,494,786,091.52
  4. Step 4: Simplify right side
    81,187,674,942.88x = 2,617,767,593,782,719,021,056
  5. Step 5: Solve for x
    x = 2,617,767,593,782,719,021,056/81,187,674,942.88
  6. Step 6: Final answer
    x = 32,243,411,276.71

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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.