Home / 1,259,716,859.20-1,889,575,288.80-865,175,060.80

Finding the Fourth Proportional to 1,259,716,859.20, 1,889,575,288.80 and 865,175,060.80

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Solution

The fourth proportional to 1,259,716,859.20, 1,889,575,288.80 and 865,175,060.80 is: 1,297,762,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,716,859.20 : 1,889,575,288.80 = 865,175,060.80 : x
  2. Step 2: Convert to fraction form
    1,259,716,859.20/1,889,575,288.80 = 865,175,060.80/x
  3. Step 3: Cross multiply
    1,259,716,859.20x = 1,889,575,288.80 × 865,175,060.80
  4. Step 4: Simplify right side
    1,259,716,859.20x = 1,634,813,415,373,717,504
  5. Step 5: Solve for x
    x = 1,634,813,415,373,717,504/1,259,716,859.20
  6. Step 6: Final answer
    x = 1,297,762,591.20

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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.