Finding the Fourth Proportional to 13,553,708.31, 18,704,117.57 and 7,442,136.81
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Solution
The fourth proportional to 13,553,708.31, 18,704,117.57 and 7,442,136.81 is: 10,270,148.85
Step by Step Solution
- Step 1: Write the proportion equation
13,553,708.31 : 18,704,117.57 = 7,442,136.81 : x - Step 2: Convert to fraction form
13,553,708.31/18,704,117.57 = 7,442,136.81/x - Step 3: Cross multiply
13,553,708.31x = 18,704,117.57 × 7,442,136.81 - Step 4: Simplify right side
13,553,708.31x = 139,198,601,829,054.06 - Step 5: Solve for x
x = 139,198,601,829,054.06/13,553,708.31 - Step 6: Final answer
x = 10,270,148.85
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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.