Finding the Fourth Proportional to 386,294,713.80, 579,442,070.70 and 295,595,449.80
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Solution
The fourth proportional to 386,294,713.80, 579,442,070.70 and 295,595,449.80 is: 443,393,174.70
Step by Step Solution
- Step 1: Write the proportion equation
386,294,713.80 : 579,442,070.70 = 295,595,449.80 : x - Step 2: Convert to fraction form
386,294,713.80/579,442,070.70 = 295,595,449.80/x - Step 3: Cross multiply
386,294,713.80x = 579,442,070.70 × 295,595,449.80 - Step 4: Simplify right side
386,294,713.80x = 171,280,439,521,609,920 - Step 5: Solve for x
x = 171,280,439,521,609,920/386,294,713.80 - Step 6: Final answer
x = 443,393,174.70
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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.