Home / 8,978,386.20-13,469,547.60-2,912,085.60

Finding the Fourth Proportional to 8,978,386.20, 13,469,547.60 and 2,912,085.60

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Solution

The fourth proportional to 8,978,386.20, 13,469,547.60 and 2,912,085.60 is: 4,368,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,978,386.20 : 13,469,547.60 = 2,912,085.60 : x
  2. Step 2: Convert to fraction form
    8,978,386.20/13,469,547.60 = 2,912,085.60/x
  3. Step 3: Cross multiply
    8,978,386.20x = 13,469,547.60 × 2,912,085.60
  4. Step 4: Simplify right side
    8,978,386.20x = 39,224,475,604,474.56
  5. Step 5: Solve for x
    x = 39,224,475,604,474.56/8,978,386.20
  6. Step 6: Final answer
    x = 4,368,766.81

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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.