Finding the Fourth Proportional to 274,192,960.57, 378,386,285.62 and 156,720,813.08
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Solution
The fourth proportional to 274,192,960.57, 378,386,285.62 and 156,720,813.08 is: 216,274,722.07
Step by Step Solution
- Step 1: Write the proportion equation
274,192,960.57 : 378,386,285.62 = 156,720,813.08 : x - Step 2: Convert to fraction form
274,192,960.57/378,386,285.62 = 156,720,813.08/x - Step 3: Cross multiply
274,192,960.57x = 378,386,285.62 × 156,720,813.08 - Step 4: Simplify right side
274,192,960.57x = 59,301,006,340,687,520 - Step 5: Solve for x
x = 59,301,006,340,687,520/274,192,960.57 - Step 6: Final answer
x = 216,274,722.07
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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.