Home / 20,302,898.76-27,987,004.32-12,447,868.56

Finding the Fourth Proportional to 20,302,898.76, 27,987,004.32 and 12,447,868.56

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Solution

The fourth proportional to 20,302,898.76, 27,987,004.32 and 12,447,868.56 is: 17,159,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302,898.76 : 27,987,004.32 = 12,447,868.56 : x
  2. Step 2: Convert to fraction form
    20,302,898.76/27,987,004.32 = 12,447,868.56/x
  3. Step 3: Cross multiply
    20,302,898.76x = 27,987,004.32 × 12,447,868.56
  4. Step 4: Simplify right side
    20,302,898.76x = 348,378,551,163,512.19
  5. Step 5: Solve for x
    x = 348,378,551,163,512.19/20,302,898.76
  6. Step 6: Final answer
    x = 17,159,054.74

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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.