Home / 139,874,633.40-209,588,001.30-88,665,007.80

Finding the Fourth Proportional to 139,874,633.40, 209,588,001.30 and 88,665,007.80

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Solution

The fourth proportional to 139,874,633.40, 209,588,001.30 and 88,665,007.80 is: 132,855,552.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,874,633.40 : 209,588,001.30 = 88,665,007.80 : x
  2. Step 2: Convert to fraction form
    139,874,633.40/209,588,001.30 = 88,665,007.80/x
  3. Step 3: Cross multiply
    139,874,633.40x = 209,588,001.30 × 88,665,007.80
  4. Step 4: Simplify right side
    139,874,633.40x = 18,583,121,770,050,912
  5. Step 5: Solve for x
    x = 18,583,121,770,050,912/139,874,633.40
  6. Step 6: Final answer
    x = 132,855,552.99

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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.