Finding the Fourth Proportional to 9,966,276.90, 14,949,415.35 and 9,302,724.90
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Solution
The fourth proportional to 9,966,276.90, 14,949,415.35 and 9,302,724.90 is: 13,954,087.35
Step by Step Solution
- Step 1: Write the proportion equation
9,966,276.90 : 14,949,415.35 = 9,302,724.90 : x - Step 2: Convert to fraction form
9,966,276.90/14,949,415.35 = 9,302,724.90/x - Step 3: Cross multiply
9,966,276.90x = 14,949,415.35 × 9,302,724.90 - Step 4: Simplify right side
9,966,276.90x = 139,070,298,416,887.22 - Step 5: Solve for x
x = 139,070,298,416,887.22/9,966,276.90 - Step 6: Final answer
x = 13,954,087.35
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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.