Finding the Fourth Proportional to 1,479,465,589.84, 2,040,888,463.12 and 914,769,959.68
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Solution
The fourth proportional to 1,479,465,589.84, 2,040,888,463.12 and 914,769,959.68 is: 1,261,903,940.14
Step by Step Solution
- Step 1: Write the proportion equation
1,479,465,589.84 : 2,040,888,463.12 = 914,769,959.68 : x - Step 2: Convert to fraction form
1,479,465,589.84/2,040,888,463.12 = 914,769,959.68/x - Step 3: Cross multiply
1,479,465,589.84x = 2,040,888,463.12 × 914,769,959.68 - Step 4: Simplify right side
1,479,465,589.84x = 1,866,943,457,119,659,264 - Step 5: Solve for x
x = 1,866,943,457,119,659,264/1,479,465,589.84 - Step 6: Final answer
x = 1,261,903,940.14
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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.