Finding the Fourth Proportional to 29,569,453.12, 40,790,560.80 and 18,710,735.68
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Solution
The fourth proportional to 29,569,453.12, 40,790,560.80 and 18,710,735.68 is: 25,811,143.62
Step by Step Solution
- Step 1: Write the proportion equation
29,569,453.12 : 40,790,560.80 = 18,710,735.68 : x - Step 2: Convert to fraction form
29,569,453.12/40,790,560.80 = 18,710,735.68/x - Step 3: Cross multiply
29,569,453.12x = 40,790,560.80 × 18,710,735.68 - Step 4: Simplify right side
29,569,453.12x = 763,221,401,367,769.25 - Step 5: Solve for x
x = 763,221,401,367,769.25/29,569,453.12 - Step 6: Final answer
x = 25,811,143.62
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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.