Home / 196,443,010.80-294,664,516.20-81,389,314.80

Finding the Fourth Proportional to 196,443,010.80, 294,664,516.20 and 81,389,314.80

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Solution

The fourth proportional to 196,443,010.80, 294,664,516.20 and 81,389,314.80 is: 122,083,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,443,010.80 : 294,664,516.20 = 81,389,314.80 : x
  2. Step 2: Convert to fraction form
    196,443,010.80/294,664,516.20 = 81,389,314.80/x
  3. Step 3: Cross multiply
    196,443,010.80x = 294,664,516.20 × 81,389,314.80
  4. Step 4: Simplify right side
    196,443,010.80x = 23,982,543,069,391,496
  5. Step 5: Solve for x
    x = 23,982,543,069,391,496/196,443,010.80
  6. Step 6: Final answer
    x = 122,083,972.20

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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.