Finding the Fourth Proportional to 12,640,719.68, 17,444,068.80 and 6,839,374.08
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Solution
The fourth proportional to 12,640,719.68, 17,444,068.80 and 6,839,374.08 is: 9,438,268.95
Step by Step Solution
- Step 1: Write the proportion equation
12,640,719.68 : 17,444,068.80 = 6,839,374.08 : x - Step 2: Convert to fraction form
12,640,719.68/17,444,068.80 = 6,839,374.08/x - Step 3: Cross multiply
12,640,719.68x = 17,444,068.80 × 6,839,374.08 - Step 4: Simplify right side
12,640,719.68x = 119,306,512,000,456.70 - Step 5: Solve for x
x = 119,306,512,000,456.70/12,640,719.68 - Step 6: Final answer
x = 9,438,268.95
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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.