Finding the Fourth Proportional to 19,964,080.80, 29,956,489.20 and 9,326,512.80
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Solution
The fourth proportional to 19,964,080.80, 29,956,489.20 and 9,326,512.80 is: 13,994,612.76
Step by Step Solution
- Step 1: Write the proportion equation
19,964,080.80 : 29,956,489.20 = 9,326,512.80 : x - Step 2: Convert to fraction form
19,964,080.80/29,956,489.20 = 9,326,512.80/x - Step 3: Cross multiply
19,964,080.80x = 29,956,489.20 × 9,326,512.80 - Step 4: Simplify right side
19,964,080.80x = 279,389,579,966,861.78 - Step 5: Solve for x
x = 279,389,579,966,861.78/19,964,080.80 - Step 6: Final answer
x = 13,994,612.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.