Finding the Fourth Proportional to 936,923,664.72, 1,291,340,808.76 and 623,097,125.36
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Solution
The fourth proportional to 936,923,664.72, 1,291,340,808.76 and 623,097,125.36 is: 858,800,749.83
Step by Step Solution
- Step 1: Write the proportion equation
936,923,664.72 : 1,291,340,808.76 = 623,097,125.36 : x - Step 2: Convert to fraction form
936,923,664.72/1,291,340,808.76 = 623,097,125.36/x - Step 3: Cross multiply
936,923,664.72x = 1,291,340,808.76 × 623,097,125.36 - Step 4: Simplify right side
936,923,664.72x = 804,630,745,798,413,568 - Step 5: Solve for x
x = 804,630,745,798,413,568/936,923,664.72 - Step 6: Final answer
x = 858,800,749.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.