Home / 12,127,918.70-18,194,502.45-3,609,116.30

Finding the Fourth Proportional to 12,127,918.70, 18,194,502.45 and 3,609,116.30

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Solution

The fourth proportional to 12,127,918.70, 18,194,502.45 and 3,609,116.30 is: 5,414,455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,918.70 : 18,194,502.45 = 3,609,116.30 : x
  2. Step 2: Convert to fraction form
    12,127,918.70/18,194,502.45 = 3,609,116.30/x
  3. Step 3: Cross multiply
    12,127,918.70x = 18,194,502.45 × 3,609,116.30
  4. Step 4: Simplify right side
    12,127,918.70x = 65,666,075,362,684.93
  5. Step 5: Solve for x
    x = 65,666,075,362,684.93/12,127,918.70
  6. Step 6: Final answer
    x = 5,414,455.44

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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.