Finding the Fourth Proportional to 6,905,483.21, 9,530,425.99 and 3,966,220.82
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Solution
The fourth proportional to 6,905,483.21, 9,530,425.99 and 3,966,220.82 is: 5,473,878.20
Step by Step Solution
- Step 1: Write the proportion equation
6,905,483.21 : 9,530,425.99 = 3,966,220.82 : x - Step 2: Convert to fraction form
6,905,483.21/9,530,425.99 = 3,966,220.82/x - Step 3: Cross multiply
6,905,483.21x = 9,530,425.99 × 3,966,220.82 - Step 4: Simplify right side
6,905,483.21x = 37,799,773,985,007.11 - Step 5: Solve for x
x = 37,799,773,985,007.11/6,905,483.21 - Step 6: Final answer
x = 5,473,878.20
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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.