Home / 20,631,393.48-28,470,756.78-11,463,800.52

Finding the Fourth Proportional to 20,631,393.48, 28,470,756.78 and 11,463,800.52

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Solution

The fourth proportional to 20,631,393.48, 28,470,756.78 and 11,463,800.52 is: 15,819,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,393.48 : 28,470,756.78 = 11,463,800.52 : x
  2. Step 2: Convert to fraction form
    20,631,393.48/28,470,756.78 = 11,463,800.52/x
  3. Step 3: Cross multiply
    20,631,393.48x = 28,470,756.78 × 11,463,800.52
  4. Step 4: Simplify right side
    20,631,393.48x = 326,383,076,379,357.50
  5. Step 5: Solve for x
    x = 326,383,076,379,357.50/20,631,393.48
  6. Step 6: Final answer
    x = 15,819,730.10

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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.