Finding the Fourth Proportional to 28,920,697.22, 39,910,639.51 and 15,689,874.09
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Solution
The fourth proportional to 28,920,697.22, 39,910,639.51 and 15,689,874.09 is: 21,652,068.21
Step by Step Solution
- Step 1: Write the proportion equation
28,920,697.22 : 39,910,639.51 = 15,689,874.09 : x - Step 2: Convert to fraction form
28,920,697.22/39,910,639.51 = 15,689,874.09/x - Step 3: Cross multiply
28,920,697.22x = 39,910,639.51 × 15,689,874.09 - Step 4: Simplify right side
28,920,697.22x = 626,192,908,724,054.62 - Step 5: Solve for x
x = 626,192,908,724,054.62/28,920,697.22 - Step 6: Final answer
x = 21,652,068.21
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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.