Finding the Fourth Proportional to 7,490,769.80, 11,220,408.30 and 6,231,057.80
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Solution
The fourth proportional to 7,490,769.80, 11,220,408.30 and 6,231,057.80 is: 9,333,488.35
Step by Step Solution
- Step 1: Write the proportion equation
7,490,769.80 : 11,220,408.30 = 6,231,057.80 : x - Step 2: Convert to fraction form
7,490,769.80/11,220,408.30 = 6,231,057.80/x - Step 3: Cross multiply
7,490,769.80x = 11,220,408.30 × 6,231,057.80 - Step 4: Simplify right side
7,490,769.80x = 69,915,012,656,899.74 - Step 5: Solve for x
x = 69,915,012,656,899.74/7,490,769.80 - Step 6: Final answer
x = 9,333,488.35
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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.