Home / 12,459,394.80-18,689,092.20-11,619,586.80

Finding the Fourth Proportional to 12,459,394.80, 18,689,092.20 and 11,619,586.80

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Solution

The fourth proportional to 12,459,394.80, 18,689,092.20 and 11,619,586.80 is: 17,429,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,394.80 : 18,689,092.20 = 11,619,586.80 : x
  2. Step 2: Convert to fraction form
    12,459,394.80/18,689,092.20 = 11,619,586.80/x
  3. Step 3: Cross multiply
    12,459,394.80x = 18,689,092.20 × 11,619,586.80
  4. Step 4: Simplify right side
    12,459,394.80x = 217,159,529,031,102.97
  5. Step 5: Solve for x
    x = 217,159,529,031,102.97/12,459,394.80
  6. Step 6: Final answer
    x = 17,429,380.20

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1.5x scale

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.