Home / 12,685,771.40-19,028,657.10-7,311,000.20

Finding the Fourth Proportional to 12,685,771.40, 19,028,657.10 and 7,311,000.20

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Solution

The fourth proportional to 12,685,771.40, 19,028,657.10 and 7,311,000.20 is: 10,966,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685,771.40 : 19,028,657.10 = 7,311,000.20 : x
  2. Step 2: Convert to fraction form
    12,685,771.40/19,028,657.10 = 7,311,000.20/x
  3. Step 3: Cross multiply
    12,685,771.40x = 19,028,657.10 × 7,311,000.20
  4. Step 4: Simplify right side
    12,685,771.40x = 139,118,515,863,831.44
  5. Step 5: Solve for x
    x = 139,118,515,863,831.44/12,685,771.40
  6. Step 6: Final answer
    x = 10,966,500.30

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Double scale
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Similar ratio
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1.5x scale

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.