Home / 874,802,238.90-1,312,392,315.15-261,448,466.10

Finding the Fourth Proportional to 874,802,238.90, 1,312,392,315.15 and 261,448,466.10

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Solution

The fourth proportional to 874,802,238.90, 1,312,392,315.15 and 261,448,466.10 is: 392,229,171.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,802,238.90 : 1,312,392,315.15 = 261,448,466.10 : x
  2. Step 2: Convert to fraction form
    874,802,238.90/1,312,392,315.15 = 261,448,466.10/x
  3. Step 3: Cross multiply
    874,802,238.90x = 1,312,392,315.15 × 261,448,466.10
  4. Step 4: Simplify right side
    874,802,238.90x = 343,122,957,717,395,328
  5. Step 5: Solve for x
    x = 343,122,957,717,395,328/874,802,238.90
  6. Step 6: Final answer
    x = 392,229,171.87

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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.