Home / 8,698,510.20-13,047,765.30-5,105,998.20

Finding the Fourth Proportional to 8,698,510.20, 13,047,765.30 and 5,105,998.20

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Solution

The fourth proportional to 8,698,510.20, 13,047,765.30 and 5,105,998.20 is: 7,658,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698,510.20 : 13,047,765.30 = 5,105,998.20 : x
  2. Step 2: Convert to fraction form
    8,698,510.20/13,047,765.30 = 5,105,998.20/x
  3. Step 3: Cross multiply
    8,698,510.20x = 13,047,765.30 × 5,105,998.20
  4. Step 4: Simplify right side
    8,698,510.20x = 66,621,866,135,822.47
  5. Step 5: Solve for x
    x = 66,621,866,135,822.47/8,698,510.20
  6. Step 6: Final answer
    x = 7,658,997.30

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Double scale
Find fourth proportional to 8,698,511.20, 13,047,766.80 and 5,105,999.20
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.