Finding the Fourth Proportional to 11,389,749.62, 15,717,844.23 and 6,429,235.32
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Solution
The fourth proportional to 11,389,749.62, 15,717,844.23 and 6,429,235.32 is: 8,872,338.96
Step by Step Solution
- Step 1: Write the proportion equation
11,389,749.62 : 15,717,844.23 = 6,429,235.32 : x - Step 2: Convert to fraction form
11,389,749.62/15,717,844.23 = 6,429,235.32/x - Step 3: Cross multiply
11,389,749.62x = 15,717,844.23 × 6,429,235.32 - Step 4: Simplify right side
11,389,749.62x = 101,053,719,277,774.22 - Step 5: Solve for x
x = 101,053,719,277,774.22/11,389,749.62 - Step 6: Final answer
x = 8,872,338.96
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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.