Finding the Fourth Proportional to 19,975,242.56, 27,562,879.20 and 12,130,675.25
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Solution
The fourth proportional to 19,975,242.56, 27,562,879.20 and 12,130,675.25 is: 16,738,536.99
Step by Step Solution
- Step 1: Write the proportion equation
19,975,242.56 : 27,562,879.20 = 12,130,675.25 : x - Step 2: Convert to fraction form
19,975,242.56/27,562,879.20 = 12,130,675.25/x - Step 3: Cross multiply
19,975,242.56x = 27,562,879.20 × 12,130,675.25 - Step 4: Simplify right side
19,975,242.56x = 334,356,336,392,365.38 - Step 5: Solve for x
x = 334,356,336,392,365.38/19,975,242.56 - Step 6: Final answer
x = 16,738,536.99
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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.