Home / 139,509,391.94-209,072,769.12-88,299,999.62

Finding the Fourth Proportional to 139,509,391.94, 209,072,769.12 and 88,299,999.62

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Solution

The fourth proportional to 139,509,391.94, 209,072,769.12 and 88,299,999.62 is: 132,328,907.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,509,391.94 : 209,072,769.12 = 88,299,999.62 : x
  2. Step 2: Convert to fraction form
    139,509,391.94/209,072,769.12 = 88,299,999.62/x
  3. Step 3: Cross multiply
    139,509,391.94x = 209,072,769.12 × 88,299,999.62
  4. Step 4: Simplify right side
    139,509,391.94x = 18,461,125,433,848,348
  5. Step 5: Solve for x
    x = 18,461,125,433,848,348/139,509,391.94
  6. Step 6: Final answer
    x = 132,328,907.59

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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.