Finding the Fourth Proportional to 85,186,833.12, 117,614,584.98 and 50,390,700.84
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Solution
The fourth proportional to 85,186,833.12, 117,614,584.98 and 50,390,700.84 is: 69,572,739.70
Step by Step Solution
- Step 1: Write the proportion equation
85,186,833.12 : 117,614,584.98 = 50,390,700.84 : x - Step 2: Convert to fraction form
85,186,833.12/117,614,584.98 = 50,390,700.84/x - Step 3: Cross multiply
85,186,833.12x = 117,614,584.98 × 50,390,700.84 - Step 4: Simplify right side
85,186,833.12x = 5,926,681,366,147,938 - Step 5: Solve for x
x = 5,926,681,366,147,938/85,186,833.12 - Step 6: Final answer
x = 69,572,739.70
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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.