Finding the Fourth Proportional to 12,645,551.79, 17,451,283.95 and 7,749,828.09
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Solution
The fourth proportional to 12,645,551.79, 17,451,283.95 and 7,749,828.09 is: 10,695,021.68
Step by Step Solution
- Step 1: Write the proportion equation
12,645,551.79 : 17,451,283.95 = 7,749,828.09 : x - Step 2: Convert to fraction form
12,645,551.79/17,451,283.95 = 7,749,828.09/x - Step 3: Cross multiply
12,645,551.79x = 17,451,283.95 × 7,749,828.09 - Step 4: Simplify right side
12,645,551.79x = 135,244,450,562,276.14 - Step 5: Solve for x
x = 135,244,450,562,276.14/12,645,551.79 - Step 6: Final answer
x = 10,695,021.68
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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.