Finding the Fourth Proportional to 12,922,194.80, 17,832,746.76 and 7,121,184.68
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Solution
The fourth proportional to 12,922,194.80, 17,832,746.76 and 7,121,184.68 is: 9,827,299.85
Step by Step Solution
- Step 1: Write the proportion equation
12,922,194.80 : 17,832,746.76 = 7,121,184.68 : x - Step 2: Convert to fraction form
12,922,194.80/17,832,746.76 = 7,121,184.68/x - Step 3: Cross multiply
12,922,194.80x = 17,832,746.76 × 7,121,184.68 - Step 4: Simplify right side
12,922,194.80x = 126,990,283,029,631.64 - Step 5: Solve for x
x = 126,990,283,029,631.64/12,922,194.80 - Step 6: Final answer
x = 9,827,299.85
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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.