Home / 139,969,143.80-209,953,715.70-123,529,902.20

Finding the Fourth Proportional to 139,969,143.80, 209,953,715.70 and 123,529,902.20

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Solution

The fourth proportional to 139,969,143.80, 209,953,715.70 and 123,529,902.20 is: 185,294,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,143.80 : 209,953,715.70 = 123,529,902.20 : x
  2. Step 2: Convert to fraction form
    139,969,143.80/209,953,715.70 = 123,529,902.20/x
  3. Step 3: Cross multiply
    139,969,143.80x = 209,953,715.70 × 123,529,902.20
  4. Step 4: Simplify right side
    139,969,143.80x = 25,935,561,966,947,604
  5. Step 5: Solve for x
    x = 25,935,561,966,947,604/139,969,143.80
  6. Step 6: Final answer
    x = 185,294,853.30

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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.