Finding the Fourth Proportional to 12,878,640.08, 17,771,664.12 and 7,077,296.96
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Solution
The fourth proportional to 12,878,640.08, 17,771,664.12 and 7,077,296.96 is: 9,766,197.65
Step by Step Solution
- Step 1: Write the proportion equation
12,878,640.08 : 17,771,664.12 = 7,077,296.96 : x - Step 2: Convert to fraction form
12,878,640.08/17,771,664.12 = 7,077,296.96/x - Step 3: Cross multiply
12,878,640.08x = 17,771,664.12 × 7,077,296.96 - Step 4: Simplify right side
12,878,640.08x = 125,775,344,450,617.08 - Step 5: Solve for x
x = 125,775,344,450,617.08/12,878,640.08 - Step 6: Final answer
x = 9,766,197.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.