Home / 20,772,080.10-28,669,431.06-13,695,247.26

Finding the Fourth Proportional to 20,772,080.10, 28,669,431.06 and 13,695,247.26

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Solution

The fourth proportional to 20,772,080.10, 28,669,431.06 and 13,695,247.26 is: 18,902,052.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772,080.10 : 28,669,431.06 = 13,695,247.26 : x
  2. Step 2: Convert to fraction form
    20,772,080.10/28,669,431.06 = 13,695,247.26/x
  3. Step 3: Cross multiply
    20,772,080.10x = 28,669,431.06 × 13,695,247.26
  4. Step 4: Simplify right side
    20,772,080.10x = 392,634,947,170,223.88
  5. Step 5: Solve for x
    x = 392,634,947,170,223.88/20,772,080.10
  6. Step 6: Final answer
    x = 18,902,052.43

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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.