Home / 725,130,283,815.72-1,000,682,902,696.40-395,540,504,547.57

Finding the Fourth Proportional to 725,130,283,815.72, 1,000,682,902,696.40 and 395,540,504,547.57

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Solution

The fourth proportional to 725,130,283,815.72, 1,000,682,902,696.40 and 395,540,504,547.57 is: 545,847,593,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,130,283,815.72 : 1,000,682,902,696.40 = 395,540,504,547.57 : x
  2. Step 2: Convert to fraction form
    725,130,283,815.72/1,000,682,902,696.40 = 395,540,504,547.57/x
  3. Step 3: Cross multiply
    725,130,283,815.72x = 1,000,682,902,696.40 × 395,540,504,547.57
  4. Step 4: Simplify right side
    725,130,283,815.72x = 395,810,620,224,660,947,599,360
  5. Step 5: Solve for x
    x = 395,810,620,224,660,947,599,360/725,130,283,815.72
  6. Step 6: Final answer
    x = 545,847,593,265.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.