Finding the Fourth Proportional to 213,867,985.84, 320,750,613.08 and 98,741,914.64
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Solution
The fourth proportional to 213,867,985.84, 320,750,613.08 and 98,741,914.64 is: 148,089,156.65
Step by Step Solution
- Step 1: Write the proportion equation
213,867,985.84 : 320,750,613.08 = 98,741,914.64 : x - Step 2: Convert to fraction form
213,867,985.84/320,750,613.08 = 98,741,914.64/x - Step 3: Cross multiply
213,867,985.84x = 320,750,613.08 × 98,741,914.64 - Step 4: Simplify right side
213,867,985.84x = 31,671,529,657,473,028 - Step 5: Solve for x
x = 31,671,529,657,473,028/213,867,985.84 - Step 6: Final answer
x = 148,089,156.65
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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.