Finding the Fourth Proportional to 14,272,755.60, 19,696,421.73 and 7,746,385.05
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Solution
The fourth proportional to 14,272,755.60, 19,696,421.73 and 7,746,385.05 is: 10,690,021.69
Step by Step Solution
- Step 1: Write the proportion equation
14,272,755.60 : 19,696,421.73 = 7,746,385.05 : x - Step 2: Convert to fraction form
14,272,755.60/19,696,421.73 = 7,746,385.05/x - Step 3: Cross multiply
14,272,755.60x = 19,696,421.73 × 7,746,385.05 - Step 4: Simplify right side
14,272,755.60x = 152,576,066,857,642.22 - Step 5: Solve for x
x = 152,576,066,857,642.22/14,272,755.60 - Step 6: Final answer
x = 10,690,021.69
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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.