Home / 1,259,714,412.20-1,889,571,618.30-865,172,613.80

Finding the Fourth Proportional to 1,259,714,412.20, 1,889,571,618.30 and 865,172,613.80

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Solution

The fourth proportional to 1,259,714,412.20, 1,889,571,618.30 and 865,172,613.80 is: 1,297,758,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,714,412.20 : 1,889,571,618.30 = 865,172,613.80 : x
  2. Step 2: Convert to fraction form
    1,259,714,412.20/1,889,571,618.30 = 865,172,613.80/x
  3. Step 3: Cross multiply
    1,259,714,412.20x = 1,889,571,618.30 × 865,172,613.80
  4. Step 4: Simplify right side
    1,259,714,412.20x = 1,634,805,615,966,906,880
  5. Step 5: Solve for x
    x = 1,634,805,615,966,906,880/1,259,714,412.20
  6. Step 6: Final answer
    x = 1,297,758,920.70

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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.