Home / 21,476,706.76-29,638,477.38-11,687,782.60

Finding the Fourth Proportional to 21,476,706.76, 29,638,477.38 and 11,687,782.60

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Solution

The fourth proportional to 21,476,706.76, 29,638,477.38 and 11,687,782.60 is: 16,129,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476,706.76 : 29,638,477.38 = 11,687,782.60 : x
  2. Step 2: Convert to fraction form
    21,476,706.76/29,638,477.38 = 11,687,782.60/x
  3. Step 3: Cross multiply
    21,476,706.76x = 29,638,477.38 × 11,687,782.60
  4. Step 4: Simplify right side
    21,476,706.76x = 346,408,080,212,457.56
  5. Step 5: Solve for x
    x = 346,408,080,212,457.56/21,476,706.76
  6. Step 6: Final answer
    x = 16,129,478.51

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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.