Finding the Fourth Proportional to 65,754,145.71, 90,666,464.81 and 49,181,157.99
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Solution
The fourth proportional to 65,754,145.71, 90,666,464.81 and 49,181,157.99 is: 67,814,457.66
Step by Step Solution
- Step 1: Write the proportion equation
65,754,145.71 : 90,666,464.81 = 49,181,157.99 : x - Step 2: Convert to fraction form
65,754,145.71/90,666,464.81 = 49,181,157.99/x - Step 3: Cross multiply
65,754,145.71x = 90,666,464.81 × 49,181,157.99 - Step 4: Simplify right side
65,754,145.71x = 4,459,081,729,969,480 - Step 5: Solve for x
x = 4,459,081,729,969,480/65,754,145.71 - Step 6: Final answer
x = 67,814,457.66
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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.