Finding the Fourth Proportional to 21,381,638.27, 32,075,438.61 and 6,610,939.37
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Solution
The fourth proportional to 21,381,638.27, 32,075,438.61 and 6,610,939.37 is: 9,917,330.80
Step by Step Solution
- Step 1: Write the proportion equation
21,381,638.27 : 32,075,438.61 = 6,610,939.37 : x - Step 2: Convert to fraction form
21,381,638.27/32,075,438.61 = 6,610,939.37/x - Step 3: Cross multiply
21,381,638.27x = 32,075,438.61 × 6,610,939.37 - Step 4: Simplify right side
21,381,638.27x = 212,048,779,756,489.88 - Step 5: Solve for x
x = 212,048,779,756,489.88/21,381,638.27 - Step 6: Final answer
x = 9,917,330.80
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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.