Finding the Fourth Proportional to 1,304,511,873.12, 1,954,298,863.80 and 771,126,423.12
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Solution
The fourth proportional to 1,304,511,873.12, 1,954,298,863.80 and 771,126,423.12 is: 1,155,230,185.02
Step by Step Solution
- Step 1: Write the proportion equation
1,304,511,873.12 : 1,954,298,863.80 = 771,126,423.12 : x - Step 2: Convert to fraction form
1,304,511,873.12/1,954,298,863.80 = 771,126,423.12/x - Step 3: Cross multiply
1,304,511,873.12x = 1,954,298,863.80 × 771,126,423.12 - Step 4: Simplify right side
1,304,511,873.12x = 1,507,011,492,549,574,144 - Step 5: Solve for x
x = 1,507,011,492,549,574,144/1,304,511,873.12 - Step 6: Final answer
x = 1,155,230,185.02
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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.