Finding the Fourth Proportional to 266,069,759.40, 399,104,639.10 and 192,943,477.80
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Solution
The fourth proportional to 266,069,759.40, 399,104,639.10 and 192,943,477.80 is: 289,415,216.70
Step by Step Solution
- Step 1: Write the proportion equation
266,069,759.40 : 399,104,639.10 = 192,943,477.80 : x - Step 2: Convert to fraction form
266,069,759.40/399,104,639.10 = 192,943,477.80/x - Step 3: Cross multiply
266,069,759.40x = 399,104,639.10 × 192,943,477.80 - Step 4: Simplify right side
266,069,759.40x = 77,004,637,074,067,872 - Step 5: Solve for x
x = 77,004,637,074,067,872/266,069,759.40 - Step 6: Final answer
x = 289,415,216.70
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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.