Finding the Fourth Proportional to 7,029,478.90, 10,544,218.35 and 5,612,302.90
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Solution
The fourth proportional to 7,029,478.90, 10,544,218.35 and 5,612,302.90 is: 8,418,454.35
Step by Step Solution
- Step 1: Write the proportion equation
7,029,478.90 : 10,544,218.35 = 5,612,302.90 : x - Step 2: Convert to fraction form
7,029,478.90/10,544,218.35 = 5,612,302.90/x - Step 3: Cross multiply
7,029,478.90x = 10,544,218.35 × 5,612,302.90 - Step 4: Simplify right side
7,029,478.90x = 59,177,347,223,938.22 - Step 5: Solve for x
x = 59,177,347,223,938.22/7,029,478.90 - Step 6: Final answer
x = 8,418,454.35
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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.