Home / 13,579,160.72-18,739,734.54-7,779,063.44

Finding the Fourth Proportional to 13,579,160.72, 18,739,734.54 and 7,779,063.44

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Solution

The fourth proportional to 13,579,160.72, 18,739,734.54 and 7,779,063.44 is: 10,735,389.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,160.72 : 18,739,734.54 = 7,779,063.44 : x
  2. Step 2: Convert to fraction form
    13,579,160.72/18,739,734.54 = 7,779,063.44/x
  3. Step 3: Cross multiply
    13,579,160.72x = 18,739,734.54 × 7,779,063.44
  4. Step 4: Simplify right side
    13,579,160.72x = 145,777,583,835,419.22
  5. Step 5: Solve for x
    x = 145,777,583,835,419.22/13,579,160.72
  6. Step 6: Final answer
    x = 10,735,389.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.