Home / 1,259,714,611.20-1,889,571,916.80-865,172,812.80

Finding the Fourth Proportional to 1,259,714,611.20, 1,889,571,916.80 and 865,172,812.80

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Solution

The fourth proportional to 1,259,714,611.20, 1,889,571,916.80 and 865,172,812.80 is: 1,297,759,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,714,611.20 : 1,889,571,916.80 = 865,172,812.80 : x
  2. Step 2: Convert to fraction form
    1,259,714,611.20/1,889,571,916.80 = 865,172,812.80/x
  3. Step 3: Cross multiply
    1,259,714,611.20x = 1,889,571,916.80 × 865,172,812.80
  4. Step 4: Simplify right side
    1,259,714,611.20x = 1,634,806,250,245,743,360
  5. Step 5: Solve for x
    x = 1,634,806,250,245,743,360/1,259,714,611.20
  6. Step 6: Final answer
    x = 1,297,759,219.20

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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.