Home / 10,780,847.60-16,171,271.40-7,741,792.40

Finding the Fourth Proportional to 10,780,847.60, 16,171,271.40 and 7,741,792.40

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Solution

The fourth proportional to 10,780,847.60, 16,171,271.40 and 7,741,792.40 is: 11,612,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,847.60 : 16,171,271.40 = 7,741,792.40 : x
  2. Step 2: Convert to fraction form
    10,780,847.60/16,171,271.40 = 7,741,792.40/x
  3. Step 3: Cross multiply
    10,780,847.60x = 16,171,271.40 × 7,741,792.40
  4. Step 4: Simplify right side
    10,780,847.60x = 125,194,626,022,857.38
  5. Step 5: Solve for x
    x = 125,194,626,022,857.38/10,780,847.60
  6. Step 6: Final answer
    x = 11,612,688.60

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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.