Home / 198,144,890.40-297,217,335.60-120,660,792.60

Finding the Fourth Proportional to 198,144,890.40, 297,217,335.60 and 120,660,792.60

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Solution

The fourth proportional to 198,144,890.40, 297,217,335.60 and 120,660,792.60 is: 180,991,188.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,144,890.40 : 297,217,335.60 = 120,660,792.60 : x
  2. Step 2: Convert to fraction form
    198,144,890.40/297,217,335.60 = 120,660,792.60/x
  3. Step 3: Cross multiply
    198,144,890.40x = 297,217,335.60 × 120,660,792.60
  4. Step 4: Simplify right side
    198,144,890.40x = 35,862,479,287,956,196
  5. Step 5: Solve for x
    x = 35,862,479,287,956,196/198,144,890.40
  6. Step 6: Final answer
    x = 180,991,188.90

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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.