Finding the Fourth Proportional to 722,082,839,343.84, 1,083,128,874,567.60 and 212,139,520,614.75
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Solution
The fourth proportional to 722,082,839,343.84, 1,083,128,874,567.60 and 212,139,520,614.75 is: 318,210,636,917.45
Step by Step Solution
- Step 1: Write the proportion equation
722,082,839,343.84 : 1,083,128,874,567.60 = 212,139,520,614.75 : x - Step 2: Convert to fraction form
722,082,839,343.84/1,083,128,874,567.60 = 212,139,520,614.75/x - Step 3: Cross multiply
722,082,839,343.84x = 1,083,128,874,567.60 × 212,139,520,614.75 - Step 4: Simplify right side
722,082,839,343.84x = 229,774,440,214,764,325,961,728 - Step 5: Solve for x
x = 229,774,440,214,764,325,961,728/722,082,839,343.84 - Step 6: Final answer
x = 318,210,636,917.45
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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.