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Finding the Fourth Proportional to 207,657,211.35, 311,485,817.03 and 207,657,211.35

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Solution

The fourth proportional to 207,657,211.35, 311,485,817.03 and 207,657,211.35 is: 311,485,817.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,657,211.35 : 311,485,817.03 = 207,657,211.35 : x
  2. Step 2: Convert to fraction form
    207,657,211.35/311,485,817.03 = 207,657,211.35/x
  3. Step 3: Cross multiply
    207,657,211.35x = 311,485,817.03 × 207,657,211.35
  4. Step 4: Simplify right side
    207,657,211.35x = 64,682,276,138,487,848
  5. Step 5: Solve for x
    x = 64,682,276,138,487,848/207,657,211.35
  6. Step 6: Final answer
    x = 311,485,817.03

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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.