Finding the Fourth Proportional to 28,331,641.80, 42,514,958.70 and 11,290,537.80
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Solution
The fourth proportional to 28,331,641.80, 42,514,958.70 and 11,290,537.80 is: 16,942,779.09
Step by Step Solution
- Step 1: Write the proportion equation
28,331,641.80 : 42,514,958.70 = 11,290,537.80 : x - Step 2: Convert to fraction form
28,331,641.80/42,514,958.70 = 11,290,537.80/x - Step 3: Cross multiply
28,331,641.80x = 42,514,958.70 × 11,290,537.80 - Step 4: Simplify right side
28,331,641.80x = 480,016,748,267,788.94 - Step 5: Solve for x
x = 480,016,748,267,788.94/28,331,641.80 - Step 6: Final answer
x = 16,942,779.09
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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.