Finding the Fourth Proportional to 328,544,026.70, 492,784,012.65 and 86,206,930.70
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Solution
The fourth proportional to 328,544,026.70, 492,784,012.65 and 86,206,930.70 is: 129,301,992.35
Step by Step Solution
- Step 1: Write the proportion equation
328,544,026.70 : 492,784,012.65 = 86,206,930.70 : x - Step 2: Convert to fraction form
328,544,026.70/492,784,012.65 = 86,206,930.70/x - Step 3: Cross multiply
328,544,026.70x = 492,784,012.65 × 86,206,930.70 - Step 4: Simplify right side
328,544,026.70x = 42,481,397,228,586,472 - Step 5: Solve for x
x = 42,481,397,228,586,472/328,544,026.70 - Step 6: Final answer
x = 129,301,992.35
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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.