Finding the Fourth Proportional to 13,838,651.79, 19,097,338.73 and 7,473,505.99
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Solution
The fourth proportional to 13,838,651.79, 19,097,338.73 and 7,473,505.99 is: 10,313,437.87
Step by Step Solution
- Step 1: Write the proportion equation
13,838,651.79 : 19,097,338.73 = 7,473,505.99 : x - Step 2: Convert to fraction form
13,838,651.79/19,097,338.73 = 7,473,505.99/x - Step 3: Cross multiply
13,838,651.79x = 19,097,338.73 × 7,473,505.99 - Step 4: Simplify right side
13,838,651.79x = 142,724,075,391,714 - Step 5: Solve for x
x = 142,724,075,391,714/13,838,651.79 - Step 6: Final answer
x = 10,313,437.87
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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.