Finding the Fourth Proportional to 13,329,006.99, 18,394,054.70 and 7,448,641.19
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Solution
The fourth proportional to 13,329,006.99, 18,394,054.70 and 7,448,641.19 is: 10,279,138.83
Step by Step Solution
- Step 1: Write the proportion equation
13,329,006.99 : 18,394,054.70 = 7,448,641.19 : x - Step 2: Convert to fraction form
13,329,006.99/18,394,054.70 = 7,448,641.19/x - Step 3: Cross multiply
13,329,006.99x = 18,394,054.70 × 7,448,641.19 - Step 4: Simplify right side
13,329,006.99x = 137,010,713,360,319.61 - Step 5: Solve for x
x = 137,010,713,360,319.61/13,329,006.99 - Step 6: Final answer
x = 10,279,138.83
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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.