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Finding the Fourth Proportional to 79,783,670.70, 119,675,506.05 and 69,705,974.70

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Solution

The fourth proportional to 79,783,670.70, 119,675,506.05 and 69,705,974.70 is: 104,558,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,783,670.70 : 119,675,506.05 = 69,705,974.70 : x
  2. Step 2: Convert to fraction form
    79,783,670.70/119,675,506.05 = 69,705,974.70/x
  3. Step 3: Cross multiply
    79,783,670.70x = 119,675,506.05 × 69,705,974.70
  4. Step 4: Simplify right side
    79,783,670.70x = 8,342,097,796,930,997
  5. Step 5: Solve for x
    x = 8,342,097,796,930,997/79,783,670.70
  6. Step 6: Final answer
    x = 104,558,962.05

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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.