Finding the Fourth Proportional to 28,976,149.64, 39,970,436.70 and 18,092,237.96
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Solution
The fourth proportional to 28,976,149.64, 39,970,436.70 and 18,092,237.96 is: 24,956,892.52
Step by Step Solution
- Step 1: Write the proportion equation
28,976,149.64 : 39,970,436.70 = 18,092,237.96 : x - Step 2: Convert to fraction form
28,976,149.64/39,970,436.70 = 18,092,237.96/x - Step 3: Cross multiply
28,976,149.64x = 39,970,436.70 × 18,092,237.96 - Step 4: Simplify right side
28,976,149.64x = 723,154,652,141,517.25 - Step 5: Solve for x
x = 723,154,652,141,517.25/28,976,149.64 - Step 6: Final answer
x = 24,956,892.52
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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.