Finding the Fourth Proportional to 12,639,435.77, 17,460,277.76 and 10,057,813.49
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Solution
The fourth proportional to 12,639,435.77, 17,460,277.76 and 10,057,813.49 is: 13,893,991.82
Step by Step Solution
- Step 1: Write the proportion equation
12,639,435.77 : 17,460,277.76 = 10,057,813.49 : x - Step 2: Convert to fraction form
12,639,435.77/17,460,277.76 = 10,057,813.49/x - Step 3: Cross multiply
12,639,435.77x = 17,460,277.76 × 10,057,813.49 - Step 4: Simplify right side
12,639,435.77x = 175,612,217,262,470.19 - Step 5: Solve for x
x = 175,612,217,262,470.19/12,639,435.77 - Step 6: Final answer
x = 13,893,991.82
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1.5x scale
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.