Finding the Fourth Proportional to 7,068,384,428.80, 10,602,576,643.20 and 2,415,512,185.60
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Solution
The fourth proportional to 7,068,384,428.80, 10,602,576,643.20 and 2,415,512,185.60 is: 3,623,268,278.40
Step by Step Solution
- Step 1: Write the proportion equation
7,068,384,428.80 : 10,602,576,643.20 = 2,415,512,185.60 : x - Step 2: Convert to fraction form
7,068,384,428.80/10,602,576,643.20 = 2,415,512,185.60/x - Step 3: Cross multiply
7,068,384,428.80x = 10,602,576,643.20 × 2,415,512,185.60 - Step 4: Simplify right side
7,068,384,428.80x = 25,610,653,080,407,543,808 - Step 5: Solve for x
x = 25,610,653,080,407,543,808/7,068,384,428.80 - Step 6: Final answer
x = 3,623,268,278.40
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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.