Finding the Fourth Proportional to 10,366,310.30, 15,549,465.45 and 7,712,102.30
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Solution
The fourth proportional to 10,366,310.30, 15,549,465.45 and 7,712,102.30 is: 11,568,153.45
Step by Step Solution
- Step 1: Write the proportion equation
10,366,310.30 : 15,549,465.45 = 7,712,102.30 : x - Step 2: Convert to fraction form
10,366,310.30/15,549,465.45 = 7,712,102.30/x - Step 3: Cross multiply
10,366,310.30x = 15,549,465.45 × 7,712,102.30 - Step 4: Simplify right side
10,366,310.30x = 119,919,068,260,715.53 - Step 5: Solve for x
x = 119,919,068,260,715.53/10,366,310.30 - Step 6: Final answer
x = 11,568,153.45
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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.