Home / 171,072,428.70-256,608,643.05-80,205,203.10

Finding the Fourth Proportional to 171,072,428.70, 256,608,643.05 and 80,205,203.10

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Solution

The fourth proportional to 171,072,428.70, 256,608,643.05 and 80,205,203.10 is: 120,307,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,428.70 : 256,608,643.05 = 80,205,203.10 : x
  2. Step 2: Convert to fraction form
    171,072,428.70/256,608,643.05 = 80,205,203.10/x
  3. Step 3: Cross multiply
    171,072,428.70x = 256,608,643.05 × 80,205,203.10
  4. Step 4: Simplify right side
    171,072,428.70x = 20,581,348,333,040,652
  5. Step 5: Solve for x
    x = 20,581,348,333,040,652/171,072,428.70
  6. Step 6: Final answer
    x = 120,307,804.65

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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.