Finding the Fourth Proportional to 11,355,502.20, 15,668,496.66 and 6,460,438.56
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Solution
The fourth proportional to 11,355,502.20, 15,668,496.66 and 6,460,438.56 is: 8,914,212.53
Step by Step Solution
- Step 1: Write the proportion equation
11,355,502.20 : 15,668,496.66 = 6,460,438.56 : x - Step 2: Convert to fraction form
11,355,502.20/15,668,496.66 = 6,460,438.56/x - Step 3: Cross multiply
11,355,502.20x = 15,668,496.66 × 6,460,438.56 - Step 4: Simplify right side
11,355,502.20x = 101,225,359,999,495.20 - Step 5: Solve for x
x = 101,225,359,999,495.20/11,355,502.20 - Step 6: Final answer
x = 8,914,212.53
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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.