Finding the Fourth Proportional to 212,323,691.21, 292,855,759.34 and 141,723,705.59
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Solution
The fourth proportional to 212,323,691.21, 292,855,759.34 and 141,723,705.59 is: 195,477,966.59
Step by Step Solution
- Step 1: Write the proportion equation
212,323,691.21 : 292,855,759.34 = 141,723,705.59 : x - Step 2: Convert to fraction form
212,323,691.21/292,855,759.34 = 141,723,705.59/x - Step 3: Cross multiply
212,323,691.21x = 292,855,759.34 × 141,723,705.59 - Step 4: Simplify right side
212,323,691.21x = 41,504,603,415,963,360 - Step 5: Solve for x
x = 41,504,603,415,963,360/212,323,691.21 - Step 6: Final answer
x = 195,477,966.59
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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.