Home / 6,615,211.20-9,922,816.80-5,122,219.20

Finding the Fourth Proportional to 6,615,211.20, 9,922,816.80 and 5,122,219.20

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Solution

The fourth proportional to 6,615,211.20, 9,922,816.80 and 5,122,219.20 is: 7,683,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615,211.20 : 9,922,816.80 = 5,122,219.20 : x
  2. Step 2: Convert to fraction form
    6,615,211.20/9,922,816.80 = 5,122,219.20/x
  3. Step 3: Cross multiply
    6,615,211.20x = 9,922,816.80 × 5,122,219.20
  4. Step 4: Simplify right side
    6,615,211.20x = 50,826,842,731,042.56
  5. Step 5: Solve for x
    x = 50,826,842,731,042.56/6,615,211.20
  6. Step 6: Final answer
    x = 7,683,328.80

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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.