Home / 6,480,040.70-9,720,061.05-5,220,328.70

Finding the Fourth Proportional to 6,480,040.70, 9,720,061.05 and 5,220,328.70

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Solution

The fourth proportional to 6,480,040.70, 9,720,061.05 and 5,220,328.70 is: 7,830,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480,040.70 : 9,720,061.05 = 5,220,328.70 : x
  2. Step 2: Convert to fraction form
    6,480,040.70/9,720,061.05 = 5,220,328.70/x
  3. Step 3: Cross multiply
    6,480,040.70x = 9,720,061.05 × 5,220,328.70
  4. Step 4: Simplify right side
    6,480,040.70x = 50,741,913,665,067.14
  5. Step 5: Solve for x
    x = 50,741,913,665,067.14/6,480,040.70
  6. Step 6: Final answer
    x = 7,830,493.05

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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.