Finding the Fourth Proportional to 14,343,811.40, 21,486,686.70 and 8,935,862.60
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Solution
The fourth proportional to 14,343,811.40, 21,486,686.70 and 8,935,862.60 is: 13,385,708.63
Step by Step Solution
- Step 1: Write the proportion equation
14,343,811.40 : 21,486,686.70 = 8,935,862.60 : x - Step 2: Convert to fraction form
14,343,811.40/21,486,686.70 = 8,935,862.60/x - Step 3: Cross multiply
14,343,811.40x = 21,486,686.70 × 8,935,862.60 - Step 4: Simplify right side
14,343,811.40x = 192,002,080,080,447.41 - Step 5: Solve for x
x = 192,002,080,080,447.41/14,343,811.40 - Step 6: Final answer
x = 13,385,708.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.