Finding the Fourth Proportional to 11,839,531.68, 16,338,553.20 and 6,407,023.68
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Solution
The fourth proportional to 11,839,531.68, 16,338,553.20 and 6,407,023.68 is: 8,841,692.40
Step by Step Solution
- Step 1: Write the proportion equation
11,839,531.68 : 16,338,553.20 = 6,407,023.68 : x - Step 2: Convert to fraction form
11,839,531.68/16,338,553.20 = 6,407,023.68/x - Step 3: Cross multiply
11,839,531.68x = 16,338,553.20 × 6,407,023.68 - Step 4: Simplify right side
11,839,531.68x = 104,681,497,249,339.77 - Step 5: Solve for x
x = 104,681,497,249,339.77/11,839,531.68 - Step 6: Final answer
x = 8,841,692.40
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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.