Home / 6,390,916.20-9,586,422.90-2,131,077.60

Finding the Fourth Proportional to 6,390,916.20, 9,586,422.90 and 2,131,077.60

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Solution

The fourth proportional to 6,390,916.20, 9,586,422.90 and 2,131,077.60 is: 3,196,632.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390,916.20 : 9,586,422.90 = 2,131,077.60 : x
  2. Step 2: Convert to fraction form
    6,390,916.20/9,586,422.90 = 2,131,077.60/x
  3. Step 3: Cross multiply
    6,390,916.20x = 9,586,422.90 × 2,131,077.60
  4. Step 4: Simplify right side
    6,390,916.20x = 20,429,411,106,317.04
  5. Step 5: Solve for x
    x = 20,429,411,106,317.04/6,390,916.20
  6. Step 6: Final answer
    x = 3,196,632.61

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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.