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Finding the Fourth Proportional to 10,685,954,729.40, 14,929,760,145 and 10,685,954,729.40

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Solution

The fourth proportional to 10,685,954,729.40, 14,929,760,145 and 10,685,954,729.40 is: 14,929,760,145

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685,954,729.40 : 14,929,760,145 = 10,685,954,729.40 : x
  2. Step 2: Convert to fraction form
    10,685,954,729.40/14,929,760,145 = 10,685,954,729.40/x
  3. Step 3: Cross multiply
    10,685,954,729.40x = 14,929,760,145 × 10,685,954,729.40
  4. Step 4: Simplify right side
    10,685,954,729.40x = 159,538,741,030,270,369,792
  5. Step 5: Solve for x
    x = 159,538,741,030,270,369,792/10,685,954,729.40
  6. Step 6: Final answer
    x = 14,929,760,145

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.