Finding the Fourth Proportional to 15,482,739.14, 21,366,795.64 and 8,513,988.03
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Solution
The fourth proportional to 15,482,739.14, 21,366,795.64 and 8,513,988.03 is: 11,749,642.01
Step by Step Solution
- Step 1: Write the proportion equation
15,482,739.14 : 21,366,795.64 = 8,513,988.03 : x - Step 2: Convert to fraction form
15,482,739.14/21,366,795.64 = 8,513,988.03/x - Step 3: Cross multiply
15,482,739.14x = 21,366,795.64 × 8,513,988.03 - Step 4: Simplify right side
15,482,739.14x = 181,916,642,297,131.19 - Step 5: Solve for x
x = 181,916,642,297,131.19/15,482,739.14 - Step 6: Final answer
x = 11,749,642.01
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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.