Home / 260,595,740.40-390,893,610.60-199,373,737.20

Finding the Fourth Proportional to 260,595,740.40, 390,893,610.60 and 199,373,737.20

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Solution

The fourth proportional to 260,595,740.40, 390,893,610.60 and 199,373,737.20 is: 299,060,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,595,740.40 : 390,893,610.60 = 199,373,737.20 : x
  2. Step 2: Convert to fraction form
    260,595,740.40/390,893,610.60 = 199,373,737.20/x
  3. Step 3: Cross multiply
    260,595,740.40x = 390,893,610.60 × 199,373,737.20
  4. Step 4: Simplify right side
    260,595,740.40x = 77,933,919,992,923,536
  5. Step 5: Solve for x
    x = 77,933,919,992,923,536/260,595,740.40
  6. Step 6: Final answer
    x = 299,060,605.80

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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.