Finding the Fourth Proportional to 7,243,344,139.10, 10,865,016,208.65 and 7,197,427,636.70
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Solution
The fourth proportional to 7,243,344,139.10, 10,865,016,208.65 and 7,197,427,636.70 is: 10,796,141,455.05
Step by Step Solution
- Step 1: Write the proportion equation
7,243,344,139.10 : 10,865,016,208.65 = 7,197,427,636.70 : x - Step 2: Convert to fraction form
7,243,344,139.10/10,865,016,208.65 = 7,197,427,636.70/x - Step 3: Cross multiply
7,243,344,139.10x = 10,865,016,208.65 × 7,197,427,636.70 - Step 4: Simplify right side
7,243,344,139.10x = 78,200,167,933,330,964,480 - Step 5: Solve for x
x = 78,200,167,933,330,964,480/7,243,344,139.10 - Step 6: Final answer
x = 10,796,141,455.05
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Double scale
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Similar ratio
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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.