Finding the Fourth Proportional to 14,389,338.79, 19,857,340.42 and 7,862,969.23
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Solution
The fourth proportional to 14,389,338.79, 19,857,340.42 and 7,862,969.23 is: 10,850,926.43
Step by Step Solution
- Step 1: Write the proportion equation
14,389,338.79 : 19,857,340.42 = 7,862,969.23 : x - Step 2: Convert to fraction form
14,389,338.79/19,857,340.42 = 7,862,969.23/x - Step 3: Cross multiply
14,389,338.79x = 19,857,340.42 × 7,862,969.23 - Step 4: Simplify right side
14,389,338.79x = 156,137,656,642,794.50 - Step 5: Solve for x
x = 156,137,656,642,794.50/14,389,338.79 - Step 6: Final answer
x = 10,850,926.43
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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.