Finding the Fourth Proportional to 7,107,818.18, 9,807,946.14 and 4,010,160.95
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Solution
The fourth proportional to 7,107,818.18, 9,807,946.14 and 4,010,160.95 is: 5,533,546.52
Step by Step Solution
- Step 1: Write the proportion equation
7,107,818.18 : 9,807,946.14 = 4,010,160.95 : x - Step 2: Convert to fraction form
7,107,818.18/9,807,946.14 = 4,010,160.95/x - Step 3: Cross multiply
7,107,818.18x = 9,807,946.14 × 4,010,160.95 - Step 4: Simplify right side
7,107,818.18x = 39,331,442,561,291.50 - Step 5: Solve for x
x = 39,331,442,561,291.50/7,107,818.18 - Step 6: Final answer
x = 5,533,546.52
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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.