Finding the Fourth Proportional to 7,488,207.20, 11,232,310.80 and 7,194,274.40
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Solution
The fourth proportional to 7,488,207.20, 11,232,310.80 and 7,194,274.40 is: 10,791,411.60
Step by Step Solution
- Step 1: Write the proportion equation
7,488,207.20 : 11,232,310.80 = 7,194,274.40 : x - Step 2: Convert to fraction form
7,488,207.20/11,232,310.80 = 7,194,274.40/x - Step 3: Cross multiply
7,488,207.20x = 11,232,310.80 × 7,194,274.40 - Step 4: Simplify right side
7,488,207.20x = 80,808,326,041,283.53 - Step 5: Solve for x
x = 80,808,326,041,283.53/7,488,207.20 - Step 6: Final answer
x = 10,791,411.60
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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.