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Finding the Fourth Proportional to 22,015,599,015.90, 30,908,909,915.70 and 22,015,599,015.90

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Solution

The fourth proportional to 22,015,599,015.90, 30,908,909,915.70 and 22,015,599,015.90 is: 30,908,909,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015,599,015.90 : 30,908,909,915.70 = 22,015,599,015.90 : x
  2. Step 2: Convert to fraction form
    22,015,599,015.90/30,908,909,915.70 = 22,015,599,015.90/x
  3. Step 3: Cross multiply
    22,015,599,015.90x = 30,908,909,915.70 × 22,015,599,015.90
  4. Step 4: Simplify right side
    22,015,599,015.90x = 680,478,166,722,626,715,648
  5. Step 5: Solve for x
    x = 680,478,166,722,626,715,648/22,015,599,015.90
  6. Step 6: Final answer
    x = 30,908,909,915.70

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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.