Finding the Fourth Proportional to 272,629,251,415.20, 408,943,877,122.80 and 259,611,922,984.80
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Solution
The fourth proportional to 272,629,251,415.20, 408,943,877,122.80 and 259,611,922,984.80 is: 389,417,884,477.20
Step by Step Solution
- Step 1: Write the proportion equation
272,629,251,415.20 : 408,943,877,122.80 = 259,611,922,984.80 : x - Step 2: Convert to fraction form
272,629,251,415.20/408,943,877,122.80 = 259,611,922,984.80/x - Step 3: Cross multiply
272,629,251,415.20x = 408,943,877,122.80 × 259,611,922,984.80 - Step 4: Simplify right side
272,629,251,415.20x = 106,166,706,332,709,867,749,376 - Step 5: Solve for x
x = 106,166,706,332,709,867,749,376/272,629,251,415.20 - Step 6: Final answer
x = 389,417,884,477.20
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1.5x scale
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.