Home / 144,519,800.76-199,436,819.76-78,440,295.30

Finding the Fourth Proportional to 144,519,800.76, 199,436,819.76 and 78,440,295.30

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Solution

The fourth proportional to 144,519,800.76, 199,436,819.76 and 78,440,295.30 is: 108,247,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,519,800.76 : 199,436,819.76 = 78,440,295.30 : x
  2. Step 2: Convert to fraction form
    144,519,800.76/199,436,819.76 = 78,440,295.30/x
  3. Step 3: Cross multiply
    144,519,800.76x = 199,436,819.76 × 78,440,295.30
  4. Step 4: Simplify right side
    144,519,800.76x = 15,643,883,035,667,274
  5. Step 5: Solve for x
    x = 15,643,883,035,667,274/144,519,800.76
  6. Step 6: Final answer
    x = 108,247,333.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.