Finding the Fourth Proportional to 263,518,433.88, 395,197,976.17 and 79,236,990.69
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Solution
The fourth proportional to 263,518,433.88, 395,197,976.17 and 79,236,990.69 is: 118,831,528.77
Step by Step Solution
- Step 1: Write the proportion equation
263,518,433.88 : 395,197,976.17 = 79,236,990.69 : x - Step 2: Convert to fraction form
263,518,433.88/395,197,976.17 = 79,236,990.69/x - Step 3: Cross multiply
263,518,433.88x = 395,197,976.17 × 79,236,990.69 - Step 4: Simplify right side
263,518,433.88x = 31,314,298,357,106,184 - Step 5: Solve for x
x = 31,314,298,357,106,184/263,518,433.88 - Step 6: Final answer
x = 118,831,528.77
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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.