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Finding the Fourth Proportional to 18,018,367,663.60, 27,027,551,495.40 and 18,018,367,663.60

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Solution

The fourth proportional to 18,018,367,663.60, 27,027,551,495.40 and 18,018,367,663.60 is: 27,027,551,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018,367,663.60 : 27,027,551,495.40 = 18,018,367,663.60 : x
  2. Step 2: Convert to fraction form
    18,018,367,663.60/27,027,551,495.40 = 18,018,367,663.60/x
  3. Step 3: Cross multiply
    18,018,367,663.60x = 27,027,551,495.40 × 18,018,367,663.60
  4. Step 4: Simplify right side
    18,018,367,663.60x = 486,992,359,890,999,181,312
  5. Step 5: Solve for x
    x = 486,992,359,890,999,181,312/18,018,367,663.60
  6. Step 6: Final answer
    x = 27,027,551,495.40

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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.