Home / 20,996,882.76-28,975,698.60-11,339,090.76

Finding the Fourth Proportional to 20,996,882.76, 28,975,698.60 and 11,339,090.76

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Solution

The fourth proportional to 20,996,882.76, 28,975,698.60 and 11,339,090.76 is: 15,647,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,882.76 : 28,975,698.60 = 11,339,090.76 : x
  2. Step 2: Convert to fraction form
    20,996,882.76/28,975,698.60 = 11,339,090.76/x
  3. Step 3: Cross multiply
    20,996,882.76x = 28,975,698.60 × 11,339,090.76
  4. Step 4: Simplify right side
    20,996,882.76x = 328,558,076,259,804.94
  5. Step 5: Solve for x
    x = 328,558,076,259,804.94/20,996,882.76
  6. Step 6: Final answer
    x = 15,647,945.46

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1.5x scale

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.