Finding the Fourth Proportional to 389,156,462.64, 537,019,879.86 and 232,609,879.98
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Solution
The fourth proportional to 389,156,462.64, 537,019,879.86 and 232,609,879.98 is: 320,992,047.66
Step by Step Solution
- Step 1: Write the proportion equation
389,156,462.64 : 537,019,879.86 = 232,609,879.98 : x - Step 2: Convert to fraction form
389,156,462.64/537,019,879.86 = 232,609,879.98/x - Step 3: Cross multiply
389,156,462.64x = 537,019,879.86 × 232,609,879.98 - Step 4: Simplify right side
389,156,462.64x = 124,916,129,801,108,624 - Step 5: Solve for x
x = 124,916,129,801,108,624/389,156,462.64 - Step 6: Final answer
x = 320,992,047.66
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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.