Home / 5,421,099.72-8,129,033.72-3,147,196.54

Finding the Fourth Proportional to 5,421,099.72, 8,129,033.72 and 3,147,196.54

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Solution

The fourth proportional to 5,421,099.72, 8,129,033.72 and 3,147,196.54 is: 4,719,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,099.72 : 8,129,033.72 = 3,147,196.54 : x
  2. Step 2: Convert to fraction form
    5,421,099.72/8,129,033.72 = 3,147,196.54/x
  3. Step 3: Cross multiply
    5,421,099.72x = 8,129,033.72 × 3,147,196.54
  4. Step 4: Simplify right side
    5,421,099.72x = 25,583,666,740,746.18
  5. Step 5: Solve for x
    x = 25,583,666,740,746.18/5,421,099.72
  6. Step 6: Final answer
    x = 4,719,276.17

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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.