Home / 20,900,020.34-28,842,384.48-11,481,208.34

Finding the Fourth Proportional to 20,900,020.34, 28,842,384.48 and 11,481,208.34

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Solution

The fourth proportional to 20,900,020.34, 28,842,384.48 and 11,481,208.34 is: 15,844,263.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900,020.34 : 28,842,384.48 = 11,481,208.34 : x
  2. Step 2: Convert to fraction form
    20,900,020.34/28,842,384.48 = 11,481,208.34/x
  3. Step 3: Cross multiply
    20,900,020.34x = 28,842,384.48 × 11,481,208.34
  4. Step 4: Simplify right side
    20,900,020.34x = 331,145,425,237,262.56
  5. Step 5: Solve for x
    x = 331,145,425,237,262.56/20,900,020.34
  6. Step 6: Final answer
    x = 15,844,263.30

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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.