Home / 21,065,805.36-29,069,343.05-11,896,676.64

Finding the Fourth Proportional to 21,065,805.36, 29,069,343.05 and 11,896,676.64

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Solution

The fourth proportional to 21,065,805.36, 29,069,343.05 and 11,896,676.64 is: 16,416,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065,805.36 : 29,069,343.05 = 11,896,676.64 : x
  2. Step 2: Convert to fraction form
    21,065,805.36/29,069,343.05 = 11,896,676.64/x
  3. Step 3: Cross multiply
    21,065,805.36x = 29,069,343.05 × 11,896,676.64
  4. Step 4: Simplify right side
    21,065,805.36x = 345,828,574,343,598
  5. Step 5: Solve for x
    x = 345,828,574,343,598/21,065,805.36
  6. Step 6: Final answer
    x = 16,416,584.53

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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.