Finding the Fourth Proportional to 252,227,603.60, 378,341,405.40 and 115,912,987.10
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Solution
The fourth proportional to 252,227,603.60, 378,341,405.40 and 115,912,987.10 is: 173,869,480.65
Step by Step Solution
- Step 1: Write the proportion equation
252,227,603.60 : 378,341,405.40 = 115,912,987.10 : x - Step 2: Convert to fraction form
252,227,603.60/378,341,405.40 = 115,912,987.10/x - Step 3: Cross multiply
252,227,603.60x = 378,341,405.40 × 115,912,987.10 - Step 4: Simplify right side
252,227,603.60x = 43,854,682,443,526,064 - Step 5: Solve for x
x = 43,854,682,443,526,064/252,227,603.60 - Step 6: Final answer
x = 173,869,480.65
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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.