Finding the Fourth Proportional to 1,119,746,891.20, 1,680,460,144.80 and 574,207,614.40
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Solution
The fourth proportional to 1,119,746,891.20, 1,680,460,144.80 and 574,207,614.40 is: 861,742,076.20
Step by Step Solution
- Step 1: Write the proportion equation
1,119,746,891.20 : 1,680,460,144.80 = 574,207,614.40 : x - Step 2: Convert to fraction form
1,119,746,891.20/1,680,460,144.80 = 574,207,614.40/x - Step 3: Cross multiply
1,119,746,891.20x = 1,680,460,144.80 × 574,207,614.40 - Step 4: Simplify right side
1,119,746,891.20x = 964,933,010,839,886,464 - Step 5: Solve for x
x = 964,933,010,839,886,464/1,119,746,891.20 - Step 6: Final answer
x = 861,742,076.20
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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.