Finding the Fourth Proportional to 99,043,837.40, 136,684,764.42 and 54,990,838.42
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Solution
The fourth proportional to 99,043,837.40, 136,684,764.42 and 54,990,838.42 is: 75,889,727.14
Step by Step Solution
- Step 1: Write the proportion equation
99,043,837.40 : 136,684,764.42 = 54,990,838.42 : x - Step 2: Convert to fraction form
99,043,837.40/136,684,764.42 = 54,990,838.42/x - Step 3: Cross multiply
99,043,837.40x = 136,684,764.42 × 54,990,838.42 - Step 4: Simplify right side
99,043,837.40x = 7,516,409,794,695,985 - Step 5: Solve for x
x = 7,516,409,794,695,985/99,043,837.40 - Step 6: Final answer
x = 75,889,727.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.