Home / 1,192,258,890.56-1,645,317,348.08-663,611,531.60

Finding the Fourth Proportional to 1,192,258,890.56, 1,645,317,348.08 and 663,611,531.60

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Solution

The fourth proportional to 1,192,258,890.56, 1,645,317,348.08 and 663,611,531.60 is: 915,783,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,258,890.56 : 1,645,317,348.08 = 663,611,531.60 : x
  2. Step 2: Convert to fraction form
    1,192,258,890.56/1,645,317,348.08 = 663,611,531.60/x
  3. Step 3: Cross multiply
    1,192,258,890.56x = 1,645,317,348.08 × 663,611,531.60
  4. Step 4: Simplify right side
    1,192,258,890.56x = 1,091,851,565,327,419,136
  5. Step 5: Solve for x
    x = 1,091,851,565,327,419,136/1,192,258,890.56
  6. Step 6: Final answer
    x = 915,783,957.64

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Half scale
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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.