Home / 1,192,258,872.56-1,645,317,323.24-663,611,513.60

Finding the Fourth Proportional to 1,192,258,872.56, 1,645,317,323.24 and 663,611,513.60

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Solution

The fourth proportional to 1,192,258,872.56, 1,645,317,323.24 and 663,611,513.60 is: 915,783,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,258,872.56 : 1,645,317,323.24 = 663,611,513.60 : x
  2. Step 2: Convert to fraction form
    1,192,258,872.56/1,645,317,323.24 = 663,611,513.60/x
  3. Step 3: Cross multiply
    1,192,258,872.56x = 1,645,317,323.24 × 663,611,513.60
  4. Step 4: Simplify right side
    1,192,258,872.56x = 1,091,851,519,227,596,928
  5. Step 5: Solve for x
    x = 1,091,851,519,227,596,928/1,192,258,872.56
  6. Step 6: Final answer
    x = 915,783,932.80

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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.