Finding the Fourth Proportional to 14,475,821.62, 19,975,854.38 and 8,280,991.02
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Solution
The fourth proportional to 14,475,821.62, 19,975,854.38 and 8,280,991.02 is: 11,427,321.71
Step by Step Solution
- Step 1: Write the proportion equation
14,475,821.62 : 19,975,854.38 = 8,280,991.02 : x - Step 2: Convert to fraction form
14,475,821.62/19,975,854.38 = 8,280,991.02/x - Step 3: Cross multiply
14,475,821.62x = 19,975,854.38 × 8,280,991.02 - Step 4: Simplify right side
14,475,821.62x = 165,419,870,737,607.66 - Step 5: Solve for x
x = 165,419,870,737,607.66/14,475,821.62 - Step 6: Final answer
x = 11,427,321.71
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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.