Finding the Fourth Proportional to 8,461,931.60, 11,661,287.64 and 8,306,450.48
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Solution
The fourth proportional to 8,461,931.60, 11,661,287.64 and 8,306,450.48 is: 11,447,020.95
Step by Step Solution
- Step 1: Write the proportion equation
8,461,931.60 : 11,661,287.64 = 8,306,450.48 : x - Step 2: Convert to fraction form
8,461,931.60/11,661,287.64 = 8,306,450.48/x - Step 3: Cross multiply
8,461,931.60x = 11,661,287.64 × 8,306,450.48 - Step 4: Simplify right side
8,461,931.60x = 96,863,908,314,696.08 - Step 5: Solve for x
x = 96,863,908,314,696.08/8,461,931.60 - Step 6: Final answer
x = 11,447,020.95
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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.