Finding the Fourth Proportional to 8,220,690.70, 12,331,036.05 and 3,732,966.70
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Solution
The fourth proportional to 8,220,690.70, 12,331,036.05 and 3,732,966.70 is: 5,599,450.05
Step by Step Solution
- Step 1: Write the proportion equation
8,220,690.70 : 12,331,036.05 = 3,732,966.70 : x - Step 2: Convert to fraction form
8,220,690.70/12,331,036.05 = 3,732,966.70/x - Step 3: Cross multiply
8,220,690.70x = 12,331,036.05 × 3,732,966.70 - Step 4: Simplify right side
8,220,690.70x = 46,031,346,951,149.54 - Step 5: Solve for x
x = 46,031,346,951,149.54/8,220,690.70 - Step 6: Final answer
x = 5,599,450.05
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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.