Home / 6,480,014.20-9,720,021.30-5,220,302.20

Finding the Fourth Proportional to 6,480,014.20, 9,720,021.30 and 5,220,302.20

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Solution

The fourth proportional to 6,480,014.20, 9,720,021.30 and 5,220,302.20 is: 7,830,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480,014.20 : 9,720,021.30 = 5,220,302.20 : x
  2. Step 2: Convert to fraction form
    6,480,014.20/9,720,021.30 = 5,220,302.20/x
  3. Step 3: Cross multiply
    6,480,014.20x = 9,720,021.30 × 5,220,302.20
  4. Step 4: Simplify right side
    6,480,014.20x = 50,741,448,576,436.87
  5. Step 5: Solve for x
    x = 50,741,448,576,436.87/6,480,014.20
  6. Step 6: Final answer
    x = 7,830,453.30

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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.