Home / 18,145,427.80-27,218,141.70-12,098,810.20

Finding the Fourth Proportional to 18,145,427.80, 27,218,141.70 and 12,098,810.20

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Solution

The fourth proportional to 18,145,427.80, 27,218,141.70 and 12,098,810.20 is: 18,148,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,427.80 : 27,218,141.70 = 12,098,810.20 : x
  2. Step 2: Convert to fraction form
    18,145,427.80/27,218,141.70 = 12,098,810.20/x
  3. Step 3: Cross multiply
    18,145,427.80x = 27,218,141.70 × 12,098,810.20
  4. Step 4: Simplify right side
    18,145,427.80x = 329,307,130,425,005.31
  5. Step 5: Solve for x
    x = 329,307,130,425,005.31/18,145,427.80
  6. Step 6: Final answer
    x = 18,148,215.30

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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.