Home / 262,416,657.60-393,624,986.40-211,398,321.60

Finding the Fourth Proportional to 262,416,657.60, 393,624,986.40 and 211,398,321.60

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Solution

The fourth proportional to 262,416,657.60, 393,624,986.40 and 211,398,321.60 is: 317,097,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,416,657.60 : 393,624,986.40 = 211,398,321.60 : x
  2. Step 2: Convert to fraction form
    262,416,657.60/393,624,986.40 = 211,398,321.60/x
  3. Step 3: Cross multiply
    262,416,657.60x = 393,624,986.40 × 211,398,321.60
  4. Step 4: Simplify right side
    262,416,657.60x = 83,211,661,464,782,816
  5. Step 5: Solve for x
    x = 83,211,661,464,782,816/262,416,657.60
  6. Step 6: Final answer
    x = 317,097,482.40

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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.