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Finding the Fourth Proportional to 15,683,678,999.80, 22,012,250,402.60 and 15,683,678,999.80

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Solution

The fourth proportional to 15,683,678,999.80, 22,012,250,402.60 and 15,683,678,999.80 is: 22,012,250,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683,678,999.80 : 22,012,250,402.60 = 15,683,678,999.80 : x
  2. Step 2: Convert to fraction form
    15,683,678,999.80/22,012,250,402.60 = 15,683,678,999.80/x
  3. Step 3: Cross multiply
    15,683,678,999.80x = 22,012,250,402.60 × 15,683,678,999.80
  4. Step 4: Simplify right side
    15,683,678,999.80x = 345,233,069,377,596,686,336
  5. Step 5: Solve for x
    x = 345,233,069,377,596,686,336/15,683,678,999.80
  6. Step 6: Final answer
    x = 22,012,250,402.60

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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.