Finding the Fourth Proportional to 660,625,381.92, 911,721,117.48 and 363,320,014.68
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Solution
The fourth proportional to 660,625,381.92, 911,721,117.48 and 363,320,014.68 is: 501,413,567.89
Step by Step Solution
- Step 1: Write the proportion equation
660,625,381.92 : 911,721,117.48 = 363,320,014.68 : x - Step 2: Convert to fraction form
660,625,381.92/911,721,117.48 = 363,320,014.68/x - Step 3: Cross multiply
660,625,381.92x = 911,721,117.48 × 363,320,014.68 - Step 4: Simplify right side
660,625,381.92x = 331,246,529,786,899,648 - Step 5: Solve for x
x = 331,246,529,786,899,648/660,625,381.92 - Step 6: Final answer
x = 501,413,567.89
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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.