Finding the Fourth Proportional to 57,991,501.80, 87,015,246.30 and 40,915,405.80
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Solution
The fourth proportional to 57,991,501.80, 87,015,246.30 and 40,915,405.80 is: 61,392,859.34
Step by Step Solution
- Step 1: Write the proportion equation
57,991,501.80 : 87,015,246.30 = 40,915,405.80 : x - Step 2: Convert to fraction form
57,991,501.80/87,015,246.30 = 40,915,405.80/x - Step 3: Cross multiply
57,991,501.80x = 87,015,246.30 × 40,915,405.80 - Step 4: Simplify right side
57,991,501.80x = 3,560,264,113,151,448 - Step 5: Solve for x
x = 3,560,264,113,151,448/57,991,501.80 - Step 6: Final answer
x = 61,392,859.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.