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Finding the Fourth Proportional to 18,678,689,301.15, 28,018,033,951.73 and 18,678,689,301.15

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Solution

The fourth proportional to 18,678,689,301.15, 28,018,033,951.73 and 18,678,689,301.15 is: 28,018,033,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,689,301.15 : 28,018,033,951.73 = 18,678,689,301.15 : x
  2. Step 2: Convert to fraction form
    18,678,689,301.15/28,018,033,951.73 = 18,678,689,301.15/x
  3. Step 3: Cross multiply
    18,678,689,301.15x = 28,018,033,951.73 × 18,678,689,301.15
  4. Step 4: Simplify right side
    18,678,689,301.15x = 523,340,151,013,343,232,000
  5. Step 5: Solve for x
    x = 523,340,151,013,343,232,000/18,678,689,301.15
  6. Step 6: Final answer
    x = 28,018,033,951.73

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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.