Finding the Fourth Proportional to 707,355,322.08, 976,127,452.32 and 405,990,237.72
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Solution
The fourth proportional to 707,355,322.08, 976,127,452.32 and 405,990,237.72 is: 560,253,388.99
Step by Step Solution
- Step 1: Write the proportion equation
707,355,322.08 : 976,127,452.32 = 405,990,237.72 : x - Step 2: Convert to fraction form
707,355,322.08/976,127,452.32 = 405,990,237.72/x - Step 3: Cross multiply
707,355,322.08x = 976,127,452.32 × 405,990,237.72 - Step 4: Simplify right side
707,355,322.08x = 396,298,216,412,414,784 - Step 5: Solve for x
x = 396,298,216,412,414,784/707,355,322.08 - Step 6: Final answer
x = 560,253,388.99
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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.