Finding the Fourth Proportional to 87,029,153.84, 120,272,478.42 and 71,323,411.55
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Solution
The fourth proportional to 87,029,153.84, 120,272,478.42 and 71,323,411.55 is: 98,567,469.61
Step by Step Solution
- Step 1: Write the proportion equation
87,029,153.84 : 120,272,478.42 = 71,323,411.55 : x - Step 2: Convert to fraction form
87,029,153.84/120,272,478.42 = 71,323,411.55/x - Step 3: Cross multiply
87,029,153.84x = 120,272,478.42 × 71,323,411.55 - Step 4: Simplify right side
87,029,153.84x = 8,578,243,475,886,792 - Step 5: Solve for x
x = 8,578,243,475,886,792/87,029,153.84 - Step 6: Final answer
x = 98,567,469.61
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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.