Home / 139,968,156.30-209,952,234.45-122,052,252.30

Finding the Fourth Proportional to 139,968,156.30, 209,952,234.45 and 122,052,252.30

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Solution

The fourth proportional to 139,968,156.30, 209,952,234.45 and 122,052,252.30 is: 183,078,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,156.30 : 209,952,234.45 = 122,052,252.30 : x
  2. Step 2: Convert to fraction form
    139,968,156.30/209,952,234.45 = 122,052,252.30/x
  3. Step 3: Cross multiply
    139,968,156.30x = 209,952,234.45 × 122,052,252.30
  4. Step 4: Simplify right side
    139,968,156.30x = 25,625,143,090,040,148
  5. Step 5: Solve for x
    x = 25,625,143,090,040,148/139,968,156.30
  6. Step 6: Final answer
    x = 183,078,378.45

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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.