Home / 20,269,653.80-30,404,473.04-8,139,113.64

Finding the Fourth Proportional to 20,269,653.80, 30,404,473.04 and 8,139,113.64

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Solution

The fourth proportional to 20,269,653.80, 30,404,473.04 and 8,139,113.64 is: 12,208,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,653.80 : 30,404,473.04 = 8,139,113.64 : x
  2. Step 2: Convert to fraction form
    20,269,653.80/30,404,473.04 = 8,139,113.64/x
  3. Step 3: Cross multiply
    20,269,653.80x = 30,404,473.04 × 8,139,113.64
  4. Step 4: Simplify right side
    20,269,653.80x = 247,465,461,236,876.25
  5. Step 5: Solve for x
    x = 247,465,461,236,876.25/20,269,653.80
  6. Step 6: Final answer
    x = 12,208,667.38

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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.