Finding the Fourth Proportional to 291,576,460.92, 402,376,239.54 and 159,425,984.76
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Solution
The fourth proportional to 291,576,460.92, 402,376,239.54 and 159,425,984.76 is: 220,008,254.54
Step by Step Solution
- Step 1: Write the proportion equation
291,576,460.92 : 402,376,239.54 = 159,425,984.76 : x - Step 2: Convert to fraction form
291,576,460.92/402,376,239.54 = 159,425,984.76/x - Step 3: Cross multiply
291,576,460.92x = 402,376,239.54 × 159,425,984.76 - Step 4: Simplify right side
291,576,460.92x = 64,149,228,232,690,152 - Step 5: Solve for x
x = 64,149,228,232,690,152/291,576,460.92 - Step 6: Final answer
x = 220,008,254.54
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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.