Finding the Fourth Proportional to 71,511,513.34, 107,268,254.15 and 20,393,537.62
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Solution
The fourth proportional to 71,511,513.34, 107,268,254.15 and 20,393,537.62 is: 30,590,587.09
Step by Step Solution
- Step 1: Write the proportion equation
71,511,513.34 : 107,268,254.15 = 20,393,537.62 : x - Step 2: Convert to fraction form
71,511,513.34/107,268,254.15 = 20,393,537.62/x - Step 3: Cross multiply
71,511,513.34x = 107,268,254.15 × 20,393,537.62 - Step 4: Simplify right side
71,511,513.34x = 2,187,579,176,439,746.25 - Step 5: Solve for x
x = 2,187,579,176,439,746.25/71,511,513.34 - Step 6: Final answer
x = 30,590,587.09
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1.5x scale
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.