Home / 20,609,852.85-30,914,779.28-12,099,798.45

Finding the Fourth Proportional to 20,609,852.85, 30,914,779.28 and 12,099,798.45

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Solution

The fourth proportional to 20,609,852.85, 30,914,779.28 and 12,099,798.45 is: 18,149,697.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609,852.85 : 30,914,779.28 = 12,099,798.45 : x
  2. Step 2: Convert to fraction form
    20,609,852.85/30,914,779.28 = 12,099,798.45/x
  3. Step 3: Cross multiply
    20,609,852.85x = 30,914,779.28 × 12,099,798.45
  4. Step 4: Simplify right side
    20,609,852.85x = 374,062,598,353,737.06
  5. Step 5: Solve for x
    x = 374,062,598,353,737.06/20,609,852.85
  6. Step 6: Final answer
    x = 18,149,697.68

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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.