Finding the Fourth Proportional to 195,731,375.77, 270,118,994.98 and 121,415,880.76
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Solution
The fourth proportional to 195,731,375.77, 270,118,994.98 and 121,415,880.76 is: 167,559,930.32
Step by Step Solution
- Step 1: Write the proportion equation
195,731,375.77 : 270,118,994.98 = 121,415,880.76 : x - Step 2: Convert to fraction form
195,731,375.77/270,118,994.98 = 121,415,880.76/x - Step 3: Cross multiply
195,731,375.77x = 270,118,994.98 × 121,415,880.76 - Step 4: Simplify right side
195,731,375.77x = 32,796,735,685,502,724 - Step 5: Solve for x
x = 32,796,735,685,502,724/195,731,375.77 - Step 6: Final answer
x = 167,559,930.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.