Home / 725,130,283,819.90-1,000,682,902,702.10-395,540,504,551.72

Finding the Fourth Proportional to 725,130,283,819.90, 1,000,682,902,702.10 and 395,540,504,551.72

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Solution

The fourth proportional to 725,130,283,819.90, 1,000,682,902,702.10 and 395,540,504,551.72 is: 545,847,593,271.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,130,283,819.90 : 1,000,682,902,702.10 = 395,540,504,551.72 : x
  2. Step 2: Convert to fraction form
    725,130,283,819.90/1,000,682,902,702.10 = 395,540,504,551.72/x
  3. Step 3: Cross multiply
    725,130,283,819.90x = 1,000,682,902,702.10 × 395,540,504,551.72
  4. Step 4: Simplify right side
    725,130,283,819.90x = 395,810,620,231,068,300,607,488
  5. Step 5: Solve for x
    x = 395,810,620,231,068,300,607,488/725,130,283,819.90
  6. Step 6: Final answer
    x = 545,847,593,271.08

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Double scale
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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.