Finding the Fourth Proportional to 207,994,639.68, 287,029,074.24 and 115,173,155.52
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Solution
The fourth proportional to 207,994,639.68, 287,029,074.24 and 115,173,155.52 is: 158,937,000.77
Step by Step Solution
- Step 1: Write the proportion equation
207,994,639.68 : 287,029,074.24 = 115,173,155.52 : x - Step 2: Convert to fraction form
207,994,639.68/287,029,074.24 = 115,173,155.52/x - Step 3: Cross multiply
207,994,639.68x = 287,029,074.24 × 115,173,155.52 - Step 4: Simplify right side
207,994,639.68x = 33,058,044,206,205,144 - Step 5: Solve for x
x = 33,058,044,206,205,144/207,994,639.68 - Step 6: Final answer
x = 158,937,000.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.