Finding the Fourth Proportional to 15,515,482.48, 21,411,365.61 and 8,992,895.29
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Solution
The fourth proportional to 15,515,482.48, 21,411,365.61 and 8,992,895.29 is: 12,410,195.38
Step by Step Solution
- Step 1: Write the proportion equation
15,515,482.48 : 21,411,365.61 = 8,992,895.29 : x - Step 2: Convert to fraction form
15,515,482.48/21,411,365.61 = 8,992,895.29/x - Step 3: Cross multiply
15,515,482.48x = 21,411,365.61 × 8,992,895.29 - Step 4: Simplify right side
15,515,482.48x = 192,550,168,946,636.94 - Step 5: Solve for x
x = 192,550,168,946,636.94/15,515,482.48 - Step 6: Final answer
x = 12,410,195.38
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1.5x scale
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.