Finding the Fourth Proportional to 386,267,674.08, 533,041,999.92 and 212,427,418.08
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Solution
The fourth proportional to 386,267,674.08, 533,041,999.92 and 212,427,418.08 is: 293,145,772.66
Step by Step Solution
- Step 1: Write the proportion equation
386,267,674.08 : 533,041,999.92 = 212,427,418.08 : x - Step 2: Convert to fraction form
386,267,674.08/533,041,999.92 = 212,427,418.08/x - Step 3: Cross multiply
386,267,674.08x = 533,041,999.92 × 212,427,418.08 - Step 4: Simplify right side
386,267,674.08x = 113,232,735,771,205,184 - Step 5: Solve for x
x = 113,232,735,771,205,184/386,267,674.08 - Step 6: Final answer
x = 293,145,772.66
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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.