Home / 12,097,111.70-18,145,667.55-11,686,538.90

Finding the Fourth Proportional to 12,097,111.70, 18,145,667.55 and 11,686,538.90

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Solution

The fourth proportional to 12,097,111.70, 18,145,667.55 and 11,686,538.90 is: 17,529,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,111.70 : 18,145,667.55 = 11,686,538.90 : x
  2. Step 2: Convert to fraction form
    12,097,111.70/18,145,667.55 = 11,686,538.90/x
  3. Step 3: Cross multiply
    12,097,111.70x = 18,145,667.55 × 11,686,538.90
  4. Step 4: Simplify right side
    12,097,111.70x = 212,060,049,689,542.72
  5. Step 5: Solve for x
    x = 212,060,049,689,542.72/12,097,111.70
  6. Step 6: Final answer
    x = 17,529,808.35

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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.