Finding the Fourth Proportional to 7,831,235.10, 11,746,852.65 and 7,299,794.10
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Solution
The fourth proportional to 7,831,235.10, 11,746,852.65 and 7,299,794.10 is: 10,949,691.15
Step by Step Solution
- Step 1: Write the proportion equation
7,831,235.10 : 11,746,852.65 = 7,299,794.10 : x - Step 2: Convert to fraction form
7,831,235.10/11,746,852.65 = 7,299,794.10/x - Step 3: Cross multiply
7,831,235.10x = 11,746,852.65 × 7,299,794.10 - Step 4: Simplify right side
7,831,235.10x = 85,749,605,668,039.36 - Step 5: Solve for x
x = 85,749,605,668,039.36/7,831,235.10 - Step 6: Final answer
x = 10,949,691.15
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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.