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Finding the Fourth Proportional to 15,327,403,480.80, 22,991,105,221.20 and 15,327,403,480.80

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Solution

The fourth proportional to 15,327,403,480.80, 22,991,105,221.20 and 15,327,403,480.80 is: 22,991,105,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327,403,480.80 : 22,991,105,221.20 = 15,327,403,480.80 : x
  2. Step 2: Convert to fraction form
    15,327,403,480.80/22,991,105,221.20 = 15,327,403,480.80/x
  3. Step 3: Cross multiply
    15,327,403,480.80x = 22,991,105,221.20 × 15,327,403,480.80
  4. Step 4: Simplify right side
    15,327,403,480.80x = 352,393,946,194,859,917,312
  5. Step 5: Solve for x
    x = 352,393,946,194,859,917,312/15,327,403,480.80
  6. Step 6: Final answer
    x = 22,991,105,221.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.