Home / 1,328,019,714.40-1,992,029,571.60-407,894,576.80

Finding the Fourth Proportional to 1,328,019,714.40, 1,992,029,571.60 and 407,894,576.80

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Solution

The fourth proportional to 1,328,019,714.40, 1,992,029,571.60 and 407,894,576.80 is: 611,841,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,019,714.40 : 1,992,029,571.60 = 407,894,576.80 : x
  2. Step 2: Convert to fraction form
    1,328,019,714.40/1,992,029,571.60 = 407,894,576.80/x
  3. Step 3: Cross multiply
    1,328,019,714.40x = 1,992,029,571.60 × 407,894,576.80
  4. Step 4: Simplify right side
    1,328,019,714.40x = 812,538,059,080,867,328
  5. Step 5: Solve for x
    x = 812,538,059,080,867,328/1,328,019,714.40
  6. Step 6: Final answer
    x = 611,841,865.20

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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.