Finding the Fourth Proportional to 2,165,639,934.08, 3,248,075,907.66 and 984,943,858.52
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Solution
The fourth proportional to 2,165,639,934.08, 3,248,075,907.66 and 984,943,858.52 is: 1,477,241,145.64
Step by Step Solution
- Step 1: Write the proportion equation
2,165,639,934.08 : 3,248,075,907.66 = 984,943,858.52 : x - Step 2: Convert to fraction form
2,165,639,934.08/3,248,075,907.66 = 984,943,858.52/x - Step 3: Cross multiply
2,165,639,934.08x = 3,248,075,907.66 × 984,943,858.52 - Step 4: Simplify right side
2,165,639,934.08x = 3,199,172,417,256,491,520 - Step 5: Solve for x
x = 3,199,172,417,256,491,520/2,165,639,934.08 - Step 6: Final answer
x = 1,477,241,145.64
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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.