Home / 82,701,029.70-124,051,544.55-81,425,571.30

Finding the Fourth Proportional to 82,701,029.70, 124,051,544.55 and 81,425,571.30

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Solution

The fourth proportional to 82,701,029.70, 124,051,544.55 and 81,425,571.30 is: 122,138,356.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,701,029.70 : 124,051,544.55 = 81,425,571.30 : x
  2. Step 2: Convert to fraction form
    82,701,029.70/124,051,544.55 = 81,425,571.30/x
  3. Step 3: Cross multiply
    82,701,029.70x = 124,051,544.55 × 81,425,571.30
  4. Step 4: Simplify right side
    82,701,029.70x = 10,100,967,885,631,150
  5. Step 5: Solve for x
    x = 10,100,967,885,631,150/82,701,029.70
  6. Step 6: Final answer
    x = 122,138,356.95

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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.