Home / 20,605,638.46-28,434,358.64-11,437,559.50

Finding the Fourth Proportional to 20,605,638.46, 28,434,358.64 and 11,437,559.50

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Solution

The fourth proportional to 20,605,638.46, 28,434,358.64 and 11,437,559.50 is: 15,783,042.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,605,638.46 : 28,434,358.64 = 11,437,559.50 : x
  2. Step 2: Convert to fraction form
    20,605,638.46/28,434,358.64 = 11,437,559.50/x
  3. Step 3: Cross multiply
    20,605,638.46x = 28,434,358.64 × 11,437,559.50
  4. Step 4: Simplify right side
    20,605,638.46x = 325,219,668,789,339.06
  5. Step 5: Solve for x
    x = 325,219,668,789,339.06/20,605,638.46
  6. Step 6: Final answer
    x = 15,783,042.56

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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.