Home / 139,968,554.70-209,952,832.05-120,820,932.30

Finding the Fourth Proportional to 139,968,554.70, 209,952,832.05 and 120,820,932.30

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Solution

The fourth proportional to 139,968,554.70, 209,952,832.05 and 120,820,932.30 is: 181,231,398.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,554.70 : 209,952,832.05 = 120,820,932.30 : x
  2. Step 2: Convert to fraction form
    139,968,554.70/209,952,832.05 = 120,820,932.30/x
  3. Step 3: Cross multiply
    139,968,554.70x = 209,952,832.05 × 120,820,932.30
  4. Step 4: Simplify right side
    139,968,554.70x = 25,366,696,907,306,320
  5. Step 5: Solve for x
    x = 25,366,696,907,306,320/139,968,554.70
  6. Step 6: Final answer
    x = 181,231,398.45

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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.