Finding the Fourth Proportional to 19,744,128.60, 29,627,252.10 and 8,382,643.80
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Solution
The fourth proportional to 19,744,128.60, 29,627,252.10 and 8,382,643.80 is: 12,578,661.04
Step by Step Solution
- Step 1: Write the proportion equation
19,744,128.60 : 29,627,252.10 = 8,382,643.80 : x - Step 2: Convert to fraction form
19,744,128.60/29,627,252.10 = 8,382,643.80/x - Step 3: Cross multiply
19,744,128.60x = 29,627,252.10 × 8,382,643.80 - Step 4: Simplify right side
19,744,128.60x = 248,354,701,127,102 - Step 5: Solve for x
x = 248,354,701,127,102/19,744,128.60 - Step 6: Final answer
x = 12,578,661.04
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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.