Finding the Fourth Proportional to 14,201,998.80, 21,278,503.80 and 6,613,400.40
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Solution
The fourth proportional to 14,201,998.80, 21,278,503.80 and 6,613,400.40 is: 9,908,694.37
Step by Step Solution
- Step 1: Write the proportion equation
14,201,998.80 : 21,278,503.80 = 6,613,400.40 : x - Step 2: Convert to fraction form
14,201,998.80/21,278,503.80 = 6,613,400.40/x - Step 3: Cross multiply
14,201,998.80x = 21,278,503.80 × 6,613,400.40 - Step 4: Simplify right side
14,201,998.80x = 140,723,265,542,321.53 - Step 5: Solve for x
x = 140,723,265,542,321.53/14,201,998.80 - Step 6: Final answer
x = 9,908,694.37
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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.