Home / 1,245,778,858.80-1,868,668,288.20-325,748,199.60

Finding the Fourth Proportional to 1,245,778,858.80, 1,868,668,288.20 and 325,748,199.60

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Solution

The fourth proportional to 1,245,778,858.80, 1,868,668,288.20 and 325,748,199.60 is: 488,622,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,778,858.80 : 1,868,668,288.20 = 325,748,199.60 : x
  2. Step 2: Convert to fraction form
    1,245,778,858.80/1,868,668,288.20 = 325,748,199.60/x
  3. Step 3: Cross multiply
    1,245,778,858.80x = 1,868,668,288.20 × 325,748,199.60
  4. Step 4: Simplify right side
    1,245,778,858.80x = 608,715,330,530,764,032
  5. Step 5: Solve for x
    x = 608,715,330,530,764,032/1,245,778,858.80
  6. Step 6: Final answer
    x = 488,622,299.40

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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.