Finding the Fourth Proportional to 13,743,309.50, 18,965,994.98 and 7,548,928.70
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Solution
The fourth proportional to 13,743,309.50, 18,965,994.98 and 7,548,928.70 is: 10,417,646.76
Step by Step Solution
- Step 1: Write the proportion equation
13,743,309.50 : 18,965,994.98 = 7,548,928.70 : x - Step 2: Convert to fraction form
13,743,309.50/18,965,994.98 = 7,548,928.70/x - Step 3: Cross multiply
13,743,309.50x = 18,965,994.98 × 7,548,928.70 - Step 4: Simplify right side
13,743,309.50x = 143,172,943,696,003.31 - Step 5: Solve for x
x = 143,172,943,696,003.31/13,743,309.50 - Step 6: Final answer
x = 10,417,646.76
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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.