Finding the Fourth Proportional to 289,657,999.70, 434,990,884.35 and 153,609,103.70
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Solution
The fourth proportional to 289,657,999.70, 434,990,884.35 and 153,609,103.70 is: 230,680,871.69
Step by Step Solution
- Step 1: Write the proportion equation
289,657,999.70 : 434,990,884.35 = 153,609,103.70 : x - Step 2: Convert to fraction form
289,657,999.70/434,990,884.35 = 153,609,103.70/x - Step 3: Cross multiply
289,657,999.70x = 434,990,884.35 × 153,609,103.70 - Step 4: Simplify right side
289,657,999.70x = 66,818,559,862,673,856 - Step 5: Solve for x
x = 66,818,559,862,673,856/289,657,999.70 - Step 6: Final answer
x = 230,680,871.69
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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.