Finding the Fourth Proportional to 7,036,377.12, 9,705,194.70 and 6,457,469.70
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Solution
The fourth proportional to 7,036,377.12, 9,705,194.70 and 6,457,469.70 is: 8,906,714.30
Step by Step Solution
- Step 1: Write the proportion equation
7,036,377.12 : 9,705,194.70 = 6,457,469.70 : x - Step 2: Convert to fraction form
7,036,377.12/9,705,194.70 = 6,457,469.70/x - Step 3: Cross multiply
7,036,377.12x = 9,705,194.70 × 6,457,469.70 - Step 4: Simplify right side
7,036,377.12x = 62,671,000,707,850.59 - Step 5: Solve for x
x = 62,671,000,707,850.59/7,036,377.12 - Step 6: Final answer
x = 8,906,714.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.