Finding the Fourth Proportional to 20,777,502.58, 31,166,254.14 and 5,631,434.08
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Solution
The fourth proportional to 20,777,502.58, 31,166,254.14 and 5,631,434.08 is: 8,447,151.19
Step by Step Solution
- Step 1: Write the proportion equation
20,777,502.58 : 31,166,254.14 = 5,631,434.08 : x - Step 2: Convert to fraction form
20,777,502.58/31,166,254.14 = 5,631,434.08/x - Step 3: Cross multiply
20,777,502.58x = 31,166,254.14 × 5,631,434.08 - Step 4: Simplify right side
20,777,502.58x = 175,510,705,610,903.56 - Step 5: Solve for x
x = 175,510,705,610,903.56/20,777,502.58 - Step 6: Final answer
x = 8,447,151.19
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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.