Finding the Fourth Proportional to 202,129,323.40, 303,193,985.10 and 99,872,201.80
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Solution
The fourth proportional to 202,129,323.40, 303,193,985.10 and 99,872,201.80 is: 149,808,302.70
Step by Step Solution
- Step 1: Write the proportion equation
202,129,323.40 : 303,193,985.10 = 99,872,201.80 : x - Step 2: Convert to fraction form
202,129,323.40/303,193,985.10 = 99,872,201.80/x - Step 3: Cross multiply
202,129,323.40x = 303,193,985.10 × 99,872,201.80 - Step 4: Simplify right side
202,129,323.40x = 30,280,650,864,453,396 - Step 5: Solve for x
x = 30,280,650,864,453,396/202,129,323.40 - Step 6: Final answer
x = 149,808,302.70
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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.