Finding the Fourth Proportional to 15,239,860.70, 21,031,161.66 and 8,270,598.38
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Solution
The fourth proportional to 15,239,860.70, 21,031,161.66 and 8,270,598.38 is: 11,413,509.28
Step by Step Solution
- Step 1: Write the proportion equation
15,239,860.70 : 21,031,161.66 = 8,270,598.38 : x - Step 2: Convert to fraction form
15,239,860.70/21,031,161.66 = 8,270,598.38/x - Step 3: Cross multiply
15,239,860.70x = 21,031,161.66 × 8,270,598.38 - Step 4: Simplify right side
15,239,860.70x = 173,940,291,449,558.31 - Step 5: Solve for x
x = 173,940,291,449,558.31/15,239,860.70 - Step 6: Final answer
x = 11,413,509.28
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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.