Finding the Fourth Proportional to 39,976,251.18, 55,167,350.88 and 21,641,492.94
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Solution
The fourth proportional to 39,976,251.18, 55,167,350.88 and 21,641,492.94 is: 29,865,327.52
Step by Step Solution
- Step 1: Write the proportion equation
39,976,251.18 : 55,167,350.88 = 21,641,492.94 : x - Step 2: Convert to fraction form
39,976,251.18/55,167,350.88 = 21,641,492.94/x - Step 3: Cross multiply
39,976,251.18x = 55,167,350.88 × 21,641,492.94 - Step 4: Simplify right side
39,976,251.18x = 1,193,903,834,588,023 - Step 5: Solve for x
x = 1,193,903,834,588,023/39,976,251.18 - Step 6: Final answer
x = 29,865,327.52
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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.