Home / 20,634,311.70-30,975,087.15-12,119,445.90

Finding the Fourth Proportional to 20,634,311.70, 30,975,087.15 and 12,119,445.90

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Solution

The fourth proportional to 20,634,311.70, 30,975,087.15 and 12,119,445.90 is: 18,193,041.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634,311.70 : 30,975,087.15 = 12,119,445.90 : x
  2. Step 2: Convert to fraction form
    20,634,311.70/30,975,087.15 = 12,119,445.90/x
  3. Step 3: Cross multiply
    20,634,311.70x = 30,975,087.15 × 12,119,445.90
  4. Step 4: Simplify right side
    20,634,311.70x = 375,400,892,962,210.19
  5. Step 5: Solve for x
    x = 375,400,892,962,210.19/20,634,311.70
  6. Step 6: Final answer
    x = 18,193,041.69

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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.