Home / 81,833,824.80-122,766,908-30,018,908.59

Finding the Fourth Proportional to 81,833,824.80, 122,766,908 and 30,018,908.59

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Solution

The fourth proportional to 81,833,824.80, 122,766,908 and 30,018,908.59 is: 45,034,294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,833,824.80 : 122,766,908 = 30,018,908.59 : x
  2. Step 2: Convert to fraction form
    81,833,824.80/122,766,908 = 30,018,908.59/x
  3. Step 3: Cross multiply
    81,833,824.80x = 122,766,908 × 30,018,908.59
  4. Step 4: Simplify right side
    81,833,824.80x = 3,685,328,589,128,939.50
  5. Step 5: Solve for x
    x = 3,685,328,589,128,939.50/81,833,824.80
  6. Step 6: Final answer
    x = 45,034,294.78

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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.