Home / 144,412,921.77-199,289,627.76-78,333,340.24

Finding the Fourth Proportional to 144,412,921.77, 199,289,627.76 and 78,333,340.24

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Solution

The fourth proportional to 144,412,921.77, 199,289,627.76 and 78,333,340.24 is: 108,099,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,412,921.77 : 199,289,627.76 = 78,333,340.24 : x
  2. Step 2: Convert to fraction form
    144,412,921.77/199,289,627.76 = 78,333,340.24/x
  3. Step 3: Cross multiply
    144,412,921.77x = 199,289,627.76 × 78,333,340.24
  4. Step 4: Simplify right side
    144,412,921.77x = 15,611,022,217,627,028
  5. Step 5: Solve for x
    x = 15,611,022,217,627,028/144,412,921.77
  6. Step 6: Final answer
    x = 108,099,898.72

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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.