Finding the Fourth Proportional to 7,310,984.40, 10,966,476.60 and 1,919,278.80
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Solution
The fourth proportional to 7,310,984.40, 10,966,476.60 and 1,919,278.80 is: 2,878,918.20
Step by Step Solution
- Step 1: Write the proportion equation
7,310,984.40 : 10,966,476.60 = 1,919,278.80 : x - Step 2: Convert to fraction form
7,310,984.40/10,966,476.60 = 1,919,278.80/x - Step 3: Cross multiply
7,310,984.40x = 10,966,476.60 × 1,919,278.80 - Step 4: Simplify right side
7,310,984.40x = 21,047,726,049,076.08 - Step 5: Solve for x
x = 21,047,726,049,076.08/7,310,984.40 - Step 6: Final answer
x = 2,878,918.20
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1.5x scale
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.