Finding the Fourth Proportional to 21,648,716.16, 32,427,885.84 and 12,985,341.84
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Solution
The fourth proportional to 21,648,716.16, 32,427,885.84 and 12,985,341.84 is: 19,450,907.84
Step by Step Solution
- Step 1: Write the proportion equation
21,648,716.16 : 32,427,885.84 = 12,985,341.84 : x - Step 2: Convert to fraction form
21,648,716.16/32,427,885.84 = 12,985,341.84/x - Step 3: Cross multiply
21,648,716.16x = 32,427,885.84 × 12,985,341.84 - Step 4: Simplify right side
21,648,716.16x = 421,087,182,780,895.56 - Step 5: Solve for x
x = 421,087,182,780,895.56/21,648,716.16 - Step 6: Final answer
x = 19,450,907.84
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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.