Finding the Fourth Proportional to 211,409,305.36, 291,751,475.86 and 122,099,590.42
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Solution
The fourth proportional to 211,409,305.36, 291,751,475.86 and 122,099,590.42 is: 168,501,266.52
Step by Step Solution
- Step 1: Write the proportion equation
211,409,305.36 : 291,751,475.86 = 122,099,590.42 : x - Step 2: Convert to fraction form
211,409,305.36/291,751,475.86 = 122,099,590.42/x - Step 3: Cross multiply
211,409,305.36x = 291,751,475.86 × 122,099,590.42 - Step 4: Simplify right side
211,409,305.36x = 35,622,735,707,653,664 - Step 5: Solve for x
x = 35,622,735,707,653,664/211,409,305.36 - Step 6: Final answer
x = 168,501,266.52
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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.