Home / 6,854,728.46-10,220,809.60-6,666,399.06

Finding the Fourth Proportional to 6,854,728.46, 10,220,809.60 and 6,666,399.06

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Solution

The fourth proportional to 6,854,728.46, 10,220,809.60 and 6,666,399.06 is: 9,939,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,854,728.46 : 10,220,809.60 = 6,666,399.06 : x
  2. Step 2: Convert to fraction form
    6,854,728.46/10,220,809.60 = 6,666,399.06/x
  3. Step 3: Cross multiply
    6,854,728.46x = 10,220,809.60 × 6,666,399.06
  4. Step 4: Simplify right side
    6,854,728.46x = 68,135,995,458,774.92
  5. Step 5: Solve for x
    x = 68,135,995,458,774.92/6,854,728.46
  6. Step 6: Final answer
    x = 9,939,999.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.