Home / 20,353,487.45-30,505,218.65-9,408,872.63

Finding the Fourth Proportional to 20,353,487.45, 30,505,218.65 and 9,408,872.63

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Solution

The fourth proportional to 20,353,487.45, 30,505,218.65 and 9,408,872.63 is: 14,101,746.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353,487.45 : 30,505,218.65 = 9,408,872.63 : x
  2. Step 2: Convert to fraction form
    20,353,487.45/30,505,218.65 = 9,408,872.63/x
  3. Step 3: Cross multiply
    20,353,487.45x = 30,505,218.65 × 9,408,872.63
  4. Step 4: Simplify right side
    20,353,487.45x = 287,019,716,781,106.19
  5. Step 5: Solve for x
    x = 287,019,716,781,106.19/20,353,487.45
  6. Step 6: Final answer
    x = 14,101,746.33

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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.