Home / 198,144,669.60-297,217,004.40-120,660,571.80

Finding the Fourth Proportional to 198,144,669.60, 297,217,004.40 and 120,660,571.80

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Solution

The fourth proportional to 198,144,669.60, 297,217,004.40 and 120,660,571.80 is: 180,990,857.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,144,669.60 : 297,217,004.40 = 120,660,571.80 : x
  2. Step 2: Convert to fraction form
    198,144,669.60/297,217,004.40 = 120,660,571.80/x
  3. Step 3: Cross multiply
    198,144,669.60x = 297,217,004.40 × 120,660,571.80
  4. Step 4: Simplify right side
    198,144,669.60x = 35,862,373,699,587,112
  5. Step 5: Solve for x
    x = 35,862,373,699,587,112/198,144,669.60
  6. Step 6: Final answer
    x = 180,990,857.70

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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.