Home / 399,050,438.40-598,575,657.60-261,993,772.80

Finding the Fourth Proportional to 399,050,438.40, 598,575,657.60 and 261,993,772.80

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Solution

The fourth proportional to 399,050,438.40, 598,575,657.60 and 261,993,772.80 is: 392,990,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,050,438.40 : 598,575,657.60 = 261,993,772.80 : x
  2. Step 2: Convert to fraction form
    399,050,438.40/598,575,657.60 = 261,993,772.80/x
  3. Step 3: Cross multiply
    399,050,438.40x = 598,575,657.60 × 261,993,772.80
  4. Step 4: Simplify right side
    399,050,438.40x = 156,823,094,840,864,992
  5. Step 5: Solve for x
    x = 156,823,094,840,864,992/399,050,438.40
  6. Step 6: Final answer
    x = 392,990,659.20

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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.