Home / 12,918,779.16-19,381,170.39-4,399,189.44

Finding the Fourth Proportional to 12,918,779.16, 19,381,170.39 and 4,399,189.44

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Solution

The fourth proportional to 12,918,779.16, 19,381,170.39 and 4,399,189.44 is: 6,599,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918,779.16 : 19,381,170.39 = 4,399,189.44 : x
  2. Step 2: Convert to fraction form
    12,918,779.16/19,381,170.39 = 4,399,189.44/x
  3. Step 3: Cross multiply
    12,918,779.16x = 19,381,170.39 × 4,399,189.44
  4. Step 4: Simplify right side
    12,918,779.16x = 85,261,440,114,528.69
  5. Step 5: Solve for x
    x = 85,261,440,114,528.69/12,918,779.16
  6. Step 6: Final answer
    x = 6,599,806.30

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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.