Home / 198,145,412.40-297,218,118.60-120,661,314.60

Finding the Fourth Proportional to 198,145,412.40, 297,218,118.60 and 120,661,314.60

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Solution

The fourth proportional to 198,145,412.40, 297,218,118.60 and 120,661,314.60 is: 180,991,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,145,412.40 : 297,218,118.60 = 120,661,314.60 : x
  2. Step 2: Convert to fraction form
    198,145,412.40/297,218,118.60 = 120,661,314.60/x
  3. Step 3: Cross multiply
    198,145,412.40x = 297,218,118.60 × 120,661,314.60
  4. Step 4: Simplify right side
    198,145,412.40x = 35,862,728,913,214,712
  5. Step 5: Solve for x
    x = 35,862,728,913,214,712/198,145,412.40
  6. Step 6: Final answer
    x = 180,991,971.90

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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.