Finding the Fourth Proportional to 265,890,811.86, 366,990,542.98 and 155,917,954.26
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Solution
The fourth proportional to 265,890,811.86, 366,990,542.98 and 155,917,954.26 is: 215,202,677.72
Step by Step Solution
- Step 1: Write the proportion equation
265,890,811.86 : 366,990,542.98 = 155,917,954.26 : x - Step 2: Convert to fraction form
265,890,811.86/366,990,542.98 = 155,917,954.26/x - Step 3: Cross multiply
265,890,811.86x = 366,990,542.98 × 155,917,954.26 - Step 4: Simplify right side
265,890,811.86x = 57,220,414,693,818,408 - Step 5: Solve for x
x = 57,220,414,693,818,408/265,890,811.86 - Step 6: Final answer
x = 215,202,677.72
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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.