Finding the Fourth Proportional to 13,223,427.38, 18,248,786.38 and 7,343,159.99
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Solution
The fourth proportional to 13,223,427.38, 18,248,786.38 and 7,343,159.99 is: 10,133,814.34
Step by Step Solution
- Step 1: Write the proportion equation
13,223,427.38 : 18,248,786.38 = 7,343,159.99 : x - Step 2: Convert to fraction form
13,223,427.38/18,248,786.38 = 7,343,159.99/x - Step 3: Cross multiply
13,223,427.38x = 18,248,786.38 × 7,343,159.99 - Step 4: Simplify right side
13,223,427.38x = 134,003,757,920,429 - Step 5: Solve for x
x = 134,003,757,920,429/13,223,427.38 - Step 6: Final answer
x = 10,133,814.34
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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.