Finding the Fourth Proportional to 199,284,617.70, 298,926,926.55 and 91,789,193.70
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Solution
The fourth proportional to 199,284,617.70, 298,926,926.55 and 91,789,193.70 is: 137,683,790.55
Step by Step Solution
- Step 1: Write the proportion equation
199,284,617.70 : 298,926,926.55 = 91,789,193.70 : x - Step 2: Convert to fraction form
199,284,617.70/298,926,926.55 = 91,789,193.70/x - Step 3: Cross multiply
199,284,617.70x = 298,926,926.55 × 91,789,193.70 - Step 4: Simplify right side
199,284,617.70x = 27,438,261,563,243,624 - Step 5: Solve for x
x = 27,438,261,563,243,624/199,284,617.70 - Step 6: Final answer
x = 137,683,790.55
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1.5x scale
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.