Finding the Fourth Proportional to 547,869,518.22, 821,792,763.62 and 133,348,652.12
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Solution
The fourth proportional to 547,869,518.22, 821,792,763.62 and 133,348,652.12 is: 200,020,175.80
Step by Step Solution
- Step 1: Write the proportion equation
547,869,518.22 : 821,792,763.62 = 133,348,652.12 : x - Step 2: Convert to fraction form
547,869,518.22/821,792,763.62 = 133,348,652.12/x - Step 3: Cross multiply
547,869,518.22x = 821,792,763.62 × 133,348,652.12 - Step 4: Simplify right side
547,869,518.22x = 109,584,957,350,696,784 - Step 5: Solve for x
x = 109,584,957,350,696,784/547,869,518.22 - Step 6: Final answer
x = 200,020,175.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.