Finding the Fourth Proportional to 839,889,026.49, 1,259,833,539.73 and 315,257,114.30
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Solution
The fourth proportional to 839,889,026.49, 1,259,833,539.73 and 315,257,114.30 is: 472,885,671.45
Step by Step Solution
- Step 1: Write the proportion equation
839,889,026.49 : 1,259,833,539.73 = 315,257,114.30 : x - Step 2: Convert to fraction form
839,889,026.49/1,259,833,539.73 = 315,257,114.30/x - Step 3: Cross multiply
839,889,026.49x = 1,259,833,539.73 × 315,257,114.30 - Step 4: Simplify right side
839,889,026.49x = 397,171,486,233,634,240 - Step 5: Solve for x
x = 397,171,486,233,634,240/839,889,026.49 - Step 6: Final answer
x = 472,885,671.45
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Similar ratio
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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.