Home / 20,793,431.40-31,189,563.90-9,433,861.80

Finding the Fourth Proportional to 20,793,431.40, 31,189,563.90 and 9,433,861.80

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Solution

The fourth proportional to 20,793,431.40, 31,189,563.90 and 9,433,861.80 is: 14,150,528.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,431.40 : 31,189,563.90 = 9,433,861.80 : x
  2. Step 2: Convert to fraction form
    20,793,431.40/31,189,563.90 = 9,433,861.80/x
  3. Step 3: Cross multiply
    20,793,431.40x = 31,189,563.90 × 9,433,861.80
  4. Step 4: Simplify right side
    20,793,431.40x = 294,238,035,434,869
  5. Step 5: Solve for x
    x = 294,238,035,434,869/20,793,431.40
  6. Step 6: Final answer
    x = 14,150,528.11

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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.