Home / 20,308,256.86-28,030,395.41-12,469,647.43

Finding the Fourth Proportional to 20,308,256.86, 28,030,395.41 and 12,469,647.43

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Solution

The fourth proportional to 20,308,256.86, 28,030,395.41 and 12,469,647.43 is: 17,211,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308,256.86 : 28,030,395.41 = 12,469,647.43 : x
  2. Step 2: Convert to fraction form
    20,308,256.86/28,030,395.41 = 12,469,647.43/x
  3. Step 3: Cross multiply
    20,308,256.86x = 28,030,395.41 × 12,469,647.43
  4. Step 4: Simplify right side
    20,308,256.86x = 349,529,148,057,510.31
  5. Step 5: Solve for x
    x = 349,529,148,057,510.31/20,308,256.86
  6. Step 6: Final answer
    x = 17,211,184.13

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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.