Finding the Fourth Proportional to 19,416,056.64, 29,116,514.29 and 7,278,904.65
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Solution
The fourth proportional to 19,416,056.64, 29,116,514.29 and 7,278,904.65 is: 10,915,518.80
Step by Step Solution
- Step 1: Write the proportion equation
19,416,056.64 : 29,116,514.29 = 7,278,904.65 : x - Step 2: Convert to fraction form
19,416,056.64/29,116,514.29 = 7,278,904.65/x - Step 3: Cross multiply
19,416,056.64x = 29,116,514.29 × 7,278,904.65 - Step 4: Simplify right side
19,416,056.64x = 211,936,331,257,272.44 - Step 5: Solve for x
x = 211,936,331,257,272.44/19,416,056.64 - Step 6: Final answer
x = 10,915,518.80
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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.