Finding the Fourth Proportional to 199,706,658.40, 299,559,987.60 and 165,666,440.80
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Solution
The fourth proportional to 199,706,658.40, 299,559,987.60 and 165,666,440.80 is: 248,499,661.20
Step by Step Solution
- Step 1: Write the proportion equation
199,706,658.40 : 299,559,987.60 = 165,666,440.80 : x - Step 2: Convert to fraction form
199,706,658.40/299,559,987.60 = 165,666,440.80/x - Step 3: Cross multiply
199,706,658.40x = 299,559,987.60 × 165,666,440.80 - Step 4: Simplify right side
199,706,658.40x = 49,627,036,951,784,144 - Step 5: Solve for x
x = 49,627,036,951,784,144/199,706,658.40 - Step 6: Final answer
x = 248,499,661.20
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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.