Finding the Fourth Proportional to 148,021,793.58, 204,272,493.42 and 81,039,634.14
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Solution
The fourth proportional to 148,021,793.58, 204,272,493.42 and 81,039,634.14 is: 111,836,019.08
Step by Step Solution
- Step 1: Write the proportion equation
148,021,793.58 : 204,272,493.42 = 81,039,634.14 : x - Step 2: Convert to fraction form
148,021,793.58/204,272,493.42 = 81,039,634.14/x - Step 3: Cross multiply
148,021,793.58x = 204,272,493.42 × 81,039,634.14 - Step 4: Simplify right side
148,021,793.58x = 16,554,168,131,622,356 - Step 5: Solve for x
x = 16,554,168,131,622,356/148,021,793.58 - Step 6: Final answer
x = 111,836,019.08
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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.