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Finding the Fourth Proportional to 18,372,663,009.30, 27,558,994,513.95 and 18,372,663,009.30

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Solution

The fourth proportional to 18,372,663,009.30, 27,558,994,513.95 and 18,372,663,009.30 is: 27,558,994,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,663,009.30 : 27,558,994,513.95 = 18,372,663,009.30 : x
  2. Step 2: Convert to fraction form
    18,372,663,009.30/27,558,994,513.95 = 18,372,663,009.30/x
  3. Step 3: Cross multiply
    18,372,663,009.30x = 27,558,994,513.95 × 18,372,663,009.30
  4. Step 4: Simplify right side
    18,372,663,009.30x = 506,332,119,079,950,811,136
  5. Step 5: Solve for x
    x = 506,332,119,079,950,811,136/18,372,663,009.30
  6. Step 6: Final answer
    x = 27,558,994,513.95

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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.