Finding the Fourth Proportional to 136,975,855.68, 189,021,664.80 and 75,094,836.48
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Solution
The fourth proportional to 136,975,855.68, 189,021,664.80 and 75,094,836.48 is: 103,628,124.38
Step by Step Solution
- Step 1: Write the proportion equation
136,975,855.68 : 189,021,664.80 = 75,094,836.48 : x - Step 2: Convert to fraction form
136,975,855.68/189,021,664.80 = 75,094,836.48/x - Step 3: Cross multiply
136,975,855.68x = 189,021,664.80 × 75,094,836.48 - Step 4: Simplify right side
136,975,855.68x = 14,194,551,009,333,374 - Step 5: Solve for x
x = 14,194,551,009,333,374/136,975,855.68 - Step 6: Final answer
x = 103,628,124.38
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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.