Finding the Fourth Proportional to 203,792,447.80, 305,688,671.70 and 135,767,999.80
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Solution
The fourth proportional to 203,792,447.80, 305,688,671.70 and 135,767,999.80 is: 203,651,999.70
Step by Step Solution
- Step 1: Write the proportion equation
203,792,447.80 : 305,688,671.70 = 135,767,999.80 : x - Step 2: Convert to fraction form
203,792,447.80/305,688,671.70 = 135,767,999.80/x - Step 3: Cross multiply
203,792,447.80x = 305,688,671.70 × 135,767,999.80 - Step 4: Simplify right side
203,792,447.80x = 41,502,739,518,227,864 - Step 5: Solve for x
x = 41,502,739,518,227,864/203,792,447.80 - Step 6: Final answer
x = 203,651,999.70
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1.5x scale
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.