Home / 20,272,239.64-30,408,105.84-4,919,656.51

Finding the Fourth Proportional to 20,272,239.64, 30,408,105.84 and 4,919,656.51

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Solution

The fourth proportional to 20,272,239.64, 30,408,105.84 and 4,919,656.51 is: 7,379,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272,239.64 : 30,408,105.84 = 4,919,656.51 : x
  2. Step 2: Convert to fraction form
    20,272,239.64/30,408,105.84 = 4,919,656.51/x
  3. Step 3: Cross multiply
    20,272,239.64x = 30,408,105.84 × 4,919,656.51
  4. Step 4: Simplify right side
    20,272,239.64x = 149,597,435,852,525
  5. Step 5: Solve for x
    x = 149,597,435,852,525/20,272,239.64
  6. Step 6: Final answer
    x = 7,379,423.22

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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.