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Finding the Fourth Proportional to 18,277,851.62, 27,362,978.31 and 13,506,826.34

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Solution

The fourth proportional to 18,277,851.62, 27,362,978.31 and 13,506,826.34 is: 20,220,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277,851.62 : 27,362,978.31 = 13,506,826.34 : x
  2. Step 2: Convert to fraction form
    18,277,851.62/27,362,978.31 = 13,506,826.34/x
  3. Step 3: Cross multiply
    18,277,851.62x = 27,362,978.31 × 13,506,826.34
  4. Step 4: Simplify right side
    18,277,851.62x = 369,586,996,297,414.69
  5. Step 5: Solve for x
    x = 369,586,996,297,414.69/18,277,851.62
  6. Step 6: Final answer
    x = 20,220,483.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.