Finding the Fourth Proportional to 7,460,309.70, 11,190,464.55 and 6,620,501.70
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Solution
The fourth proportional to 7,460,309.70, 11,190,464.55 and 6,620,501.70 is: 9,930,752.55
Step by Step Solution
- Step 1: Write the proportion equation
7,460,309.70 : 11,190,464.55 = 6,620,501.70 : x - Step 2: Convert to fraction form
7,460,309.70/11,190,464.55 = 6,620,501.70/x - Step 3: Cross multiply
7,460,309.70x = 11,190,464.55 × 6,620,501.70 - Step 4: Simplify right side
7,460,309.70x = 74,086,489,577,064.73 - Step 5: Solve for x
x = 74,086,489,577,064.73/7,460,309.70 - Step 6: Final answer
x = 9,930,752.55
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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.