Finding the Fourth Proportional to 14,394,473.98, 19,864,005.51 and 7,868,120.38
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Solution
The fourth proportional to 14,394,473.98, 19,864,005.51 and 7,868,120.38 is: 10,857,804.65
Step by Step Solution
- Step 1: Write the proportion equation
14,394,473.98 : 19,864,005.51 = 7,868,120.38 : x - Step 2: Convert to fraction form
14,394,473.98/19,864,005.51 = 7,868,120.38/x - Step 3: Cross multiply
14,394,473.98x = 19,864,005.51 × 7,868,120.38 - Step 4: Simplify right side
14,394,473.98x = 156,292,386,581,663.31 - Step 5: Solve for x
x = 156,292,386,581,663.31/14,394,473.98 - Step 6: Final answer
x = 10,857,804.65
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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.