Finding the Fourth Proportional to 13,377,743.12, 18,461,528.70 and 7,577,729.12
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Solution
The fourth proportional to 13,377,743.12, 18,461,528.70 and 7,577,729.12 is: 10,457,403.94
Step by Step Solution
- Step 1: Write the proportion equation
13,377,743.12 : 18,461,528.70 = 7,577,729.12 : x - Step 2: Convert to fraction form
13,377,743.12/18,461,528.70 = 7,577,729.12/x - Step 3: Cross multiply
13,377,743.12x = 18,461,528.70 × 7,577,729.12 - Step 4: Simplify right side
13,377,743.12x = 139,896,463,629,705.73 - Step 5: Solve for x
x = 139,896,463,629,705.73/13,377,743.12 - Step 6: Final answer
x = 10,457,403.94
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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.