Home / 1,192,258,858.57-1,645,317,303.87-663,611,499.55

Finding the Fourth Proportional to 1,192,258,858.57, 1,645,317,303.87 and 663,611,499.55

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Solution

The fourth proportional to 1,192,258,858.57, 1,645,317,303.87 and 663,611,499.55 is: 915,783,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,258,858.57 : 1,645,317,303.87 = 663,611,499.55 : x
  2. Step 2: Convert to fraction form
    1,192,258,858.57/1,645,317,303.87 = 663,611,499.55/x
  3. Step 3: Cross multiply
    1,192,258,858.57x = 1,645,317,303.87 × 663,611,499.55
  4. Step 4: Simplify right side
    1,192,258,858.57x = 1,091,851,483,256,733,568
  5. Step 5: Solve for x
    x = 1,091,851,483,256,733,568/1,192,258,858.57
  6. Step 6: Final answer
    x = 915,783,913.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.