Finding the Fourth Proportional to 55,996,361.29, 77,271,032.63 and 31,215,451.99
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Solution
The fourth proportional to 55,996,361.29, 77,271,032.63 and 31,215,451.99 is: 43,075,124.05
Step by Step Solution
- Step 1: Write the proportion equation
55,996,361.29 : 77,271,032.63 = 31,215,451.99 : x - Step 2: Convert to fraction form
55,996,361.29/77,271,032.63 = 31,215,451.99/x - Step 3: Cross multiply
55,996,361.29x = 77,271,032.63 × 31,215,451.99 - Step 4: Simplify right side
55,996,361.29x = 2,412,050,208,930,233.50 - Step 5: Solve for x
x = 2,412,050,208,930,233.50/55,996,361.29 - Step 6: Final answer
x = 43,075,124.05
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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.