Finding the Fourth Proportional to 646,637,121.27, 892,359,585.41 and 349,279,362.09
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Solution
The fourth proportional to 646,637,121.27, 892,359,585.41 and 349,279,362.09 is: 482,005,713.09
Step by Step Solution
- Step 1: Write the proportion equation
646,637,121.27 : 892,359,585.41 = 349,279,362.09 : x - Step 2: Convert to fraction form
646,637,121.27/892,359,585.41 = 349,279,362.09/x - Step 3: Cross multiply
646,637,121.27x = 892,359,585.41 × 349,279,362.09 - Step 4: Simplify right side
646,637,121.27x = 311,682,786,745,155,264 - Step 5: Solve for x
x = 311,682,786,745,155,264/646,637,121.27 - Step 6: Final answer
x = 482,005,713.09
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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.