Finding the Fourth Proportional to 212,744,692.56, 318,462,526.68 and 138,809,271.72
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Solution
The fourth proportional to 212,744,692.56, 318,462,526.68 and 138,809,271.72 is: 207,786,858.82
Step by Step Solution
- Step 1: Write the proportion equation
212,744,692.56 : 318,462,526.68 = 138,809,271.72 : x - Step 2: Convert to fraction form
212,744,692.56/318,462,526.68 = 138,809,271.72/x - Step 3: Cross multiply
212,744,692.56x = 318,462,526.68 × 138,809,271.72 - Step 4: Simplify right side
212,744,692.56x = 44,205,551,398,561,872 - Step 5: Solve for x
x = 44,205,551,398,561,872/212,744,692.56 - Step 6: Final answer
x = 207,786,858.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.