Home / 20,848,417.36-28,770,766.21-11,429,191.72

Finding the Fourth Proportional to 20,848,417.36, 28,770,766.21 and 11,429,191.72

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Solution

The fourth proportional to 20,848,417.36, 28,770,766.21 and 11,429,191.72 is: 15,772,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848,417.36 : 28,770,766.21 = 11,429,191.72 : x
  2. Step 2: Convert to fraction form
    20,848,417.36/28,770,766.21 = 11,429,191.72/x
  3. Step 3: Cross multiply
    20,848,417.36x = 28,770,766.21 × 11,429,191.72
  4. Step 4: Simplify right side
    20,848,417.36x = 328,826,602,888,241.81
  5. Step 5: Solve for x
    x = 328,826,602,888,241.81/20,848,417.36
  6. Step 6: Final answer
    x = 15,772,257.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.