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Finding the Fourth Proportional to 123,783,265.80, 185,674,898.70 and 80,736,544.80

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Solution

The fourth proportional to 123,783,265.80, 185,674,898.70 and 80,736,544.80 is: 121,104,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,783,265.80 : 185,674,898.70 = 80,736,544.80 : x
  2. Step 2: Convert to fraction form
    123,783,265.80/185,674,898.70 = 80,736,544.80/x
  3. Step 3: Cross multiply
    123,783,265.80x = 185,674,898.70 × 80,736,544.80
  4. Step 4: Simplify right side
    123,783,265.80x = 14,990,749,777,128,010
  5. Step 5: Solve for x
    x = 14,990,749,777,128,010/123,783,265.80
  6. Step 6: Final answer
    x = 121,104,817.20

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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.