Home / 6,420,830.40-9,631,245.60-5,724,100.80

Finding the Fourth Proportional to 6,420,830.40, 9,631,245.60 and 5,724,100.80

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Solution

The fourth proportional to 6,420,830.40, 9,631,245.60 and 5,724,100.80 is: 8,586,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,830.40 : 9,631,245.60 = 5,724,100.80 : x
  2. Step 2: Convert to fraction form
    6,420,830.40/9,631,245.60 = 5,724,100.80/x
  3. Step 3: Cross multiply
    6,420,830.40x = 9,631,245.60 × 5,724,100.80
  4. Step 4: Simplify right side
    6,420,830.40x = 55,130,220,643,956.48
  5. Step 5: Solve for x
    x = 55,130,220,643,956.48/6,420,830.40
  6. Step 6: Final answer
    x = 8,586,151.20

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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.