Home / 198,773,893.80-298,328,802.30-77,692,242.60

Finding the Fourth Proportional to 198,773,893.80, 298,328,802.30 and 77,692,242.60

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Solution

The fourth proportional to 198,773,893.80, 298,328,802.30 and 77,692,242.60 is: 116,604,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,773,893.80 : 298,328,802.30 = 77,692,242.60 : x
  2. Step 2: Convert to fraction form
    198,773,893.80/298,328,802.30 = 77,692,242.60/x
  3. Step 3: Cross multiply
    198,773,893.80x = 298,328,802.30 × 77,692,242.60
  4. Step 4: Simplify right side
    198,773,893.80x = 23,177,833,682,859,036
  5. Step 5: Solve for x
    x = 23,177,833,682,859,036/198,773,893.80
  6. Step 6: Final answer
    x = 116,604,012.93

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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.