Home / 198,233,999.60-297,350,999.40-120,749,901.80

Finding the Fourth Proportional to 198,233,999.60, 297,350,999.40 and 120,749,901.80

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Solution

The fourth proportional to 198,233,999.60, 297,350,999.40 and 120,749,901.80 is: 181,124,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,233,999.60 : 297,350,999.40 = 120,749,901.80 : x
  2. Step 2: Convert to fraction form
    198,233,999.60/297,350,999.40 = 120,749,901.80/x
  3. Step 3: Cross multiply
    198,233,999.60x = 297,350,999.40 × 120,749,901.80
  4. Step 4: Simplify right side
    198,233,999.60x = 35,905,103,977,681,856
  5. Step 5: Solve for x
    x = 35,905,103,977,681,856/198,233,999.60
  6. Step 6: Final answer
    x = 181,124,852.70

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1.5x scale

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.