Finding the Fourth Proportional to 291,576,467.92, 402,376,249.20 and 159,425,991.76
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Solution
The fourth proportional to 291,576,467.92, 402,376,249.20 and 159,425,991.76 is: 220,008,264.20
Step by Step Solution
- Step 1: Write the proportion equation
291,576,467.92 : 402,376,249.20 = 159,425,991.76 : x - Step 2: Convert to fraction form
291,576,467.92/402,376,249.20 = 159,425,991.76/x - Step 3: Cross multiply
291,576,467.92x = 402,376,249.20 × 159,425,991.76 - Step 4: Simplify right side
291,576,467.92x = 64,149,232,589,378,904 - Step 5: Solve for x
x = 64,149,232,589,378,904/291,576,467.92 - Step 6: Final answer
x = 220,008,264.20
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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.