Finding the Fourth Proportional to 20,756,350.64, 31,134,526.68 and 15,112,490.96
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Solution
The fourth proportional to 20,756,350.64, 31,134,526.68 and 15,112,490.96 is: 22,668,736.96
Step by Step Solution
- Step 1: Write the proportion equation
20,756,350.64 : 31,134,526.68 = 15,112,490.96 : x - Step 2: Convert to fraction form
20,756,350.64/31,134,526.68 = 15,112,490.96/x - Step 3: Cross multiply
20,756,350.64x = 31,134,526.68 × 15,112,490.96 - Step 4: Simplify right side
20,756,350.64x = 470,520,252,995,378.81 - Step 5: Solve for x
x = 470,520,252,995,378.81/20,756,350.64 - Step 6: Final answer
x = 22,668,736.96
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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.