Finding the Fourth Proportional to 371,822,982.72, 513,105,414.12 and 202,271,598.96
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Solution
The fourth proportional to 371,822,982.72, 513,105,414.12 and 202,271,598.96 is: 279,129,202.26
Step by Step Solution
- Step 1: Write the proportion equation
371,822,982.72 : 513,105,414.12 = 202,271,598.96 : x - Step 2: Convert to fraction form
371,822,982.72/513,105,414.12 = 202,271,598.96/x - Step 3: Cross multiply
371,822,982.72x = 513,105,414.12 × 202,271,598.96 - Step 4: Simplify right side
371,822,982.72x = 103,786,652,549,085,360 - Step 5: Solve for x
x = 103,786,652,549,085,360/371,822,982.72 - Step 6: Final answer
x = 279,129,202.26
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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.