Home / 144,493,140.87-199,401,056.44-78,413,624.78

Finding the Fourth Proportional to 144,493,140.87, 199,401,056.44 and 78,413,624.78

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Solution

The fourth proportional to 144,493,140.87, 199,401,056.44 and 78,413,624.78 is: 108,211,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,493,140.87 : 199,401,056.44 = 78,413,624.78 : x
  2. Step 2: Convert to fraction form
    144,493,140.87/199,401,056.44 = 78,413,624.78/x
  3. Step 3: Cross multiply
    144,493,140.87x = 199,401,056.44 × 78,413,624.78
  4. Step 4: Simplify right side
    144,493,140.87x = 15,635,759,619,228,724
  5. Step 5: Solve for x
    x = 15,635,759,619,228,724/144,493,140.87
  6. Step 6: Final answer
    x = 108,211,085.49

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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.