Home / 127,764,280.80-191,788,138.80-79,296,861.60

Finding the Fourth Proportional to 127,764,280.80, 191,788,138.80 and 79,296,861.60

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Solution

The fourth proportional to 127,764,280.80, 191,788,138.80 and 79,296,861.60 is: 119,033,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,764,280.80 : 191,788,138.80 = 79,296,861.60 : x
  2. Step 2: Convert to fraction form
    127,764,280.80/191,788,138.80 = 79,296,861.60/x
  3. Step 3: Cross multiply
    127,764,280.80x = 191,788,138.80 × 79,296,861.60
  4. Step 4: Simplify right side
    127,764,280.80x = 15,208,197,498,945,190
  5. Step 5: Solve for x
    x = 15,208,197,498,945,190/127,764,280.80
  6. Step 6: Final answer
    x = 119,033,249.38

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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.