Home / 198,665,145.60-298,104,006.60-83,661,313.20

Finding the Fourth Proportional to 198,665,145.60, 298,104,006.60 and 83,661,313.20

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Solution

The fourth proportional to 198,665,145.60, 298,104,006.60 and 83,661,313.20 is: 125,536,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,665,145.60 : 298,104,006.60 = 83,661,313.20 : x
  2. Step 2: Convert to fraction form
    198,665,145.60/298,104,006.60 = 83,661,313.20/x
  3. Step 3: Cross multiply
    198,665,145.60x = 298,104,006.60 × 83,661,313.20
  4. Step 4: Simplify right side
    198,665,145.60x = 24,939,772,662,337,472
  5. Step 5: Solve for x
    x = 24,939,772,662,337,472/198,665,145.60
  6. Step 6: Final answer
    x = 125,536,729.59

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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.