Home / 12,606,416.55-18,909,624.83-12,511,938.15

Finding the Fourth Proportional to 12,606,416.55, 18,909,624.83 and 12,511,938.15

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Solution

The fourth proportional to 12,606,416.55, 18,909,624.83 and 12,511,938.15 is: 18,767,907.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606,416.55 : 18,909,624.83 = 12,511,938.15 : x
  2. Step 2: Convert to fraction form
    12,606,416.55/18,909,624.83 = 12,511,938.15/x
  3. Step 3: Cross multiply
    12,606,416.55x = 18,909,624.83 × 12,511,938.15
  4. Step 4: Simplify right side
    12,606,416.55x = 236,596,056,250,104.56
  5. Step 5: Solve for x
    x = 236,596,056,250,104.56/12,606,416.55
  6. Step 6: Final answer
    x = 18,767,907.23

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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.