Finding the Fourth Proportional to 142,537,543.62, 213,887,189.07 and 76,957,801.98
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Solution
The fourth proportional to 142,537,543.62, 213,887,189.07 and 76,957,801.98 is: 115,480,367.66
Step by Step Solution
- Step 1: Write the proportion equation
142,537,543.62 : 213,887,189.07 = 76,957,801.98 : x - Step 2: Convert to fraction form
142,537,543.62/213,887,189.07 = 76,957,801.98/x - Step 3: Cross multiply
142,537,543.62x = 213,887,189.07 × 76,957,801.98 - Step 4: Simplify right side
142,537,543.62x = 16,460,287,942,507,880 - Step 5: Solve for x
x = 16,460,287,942,507,880/142,537,543.62 - Step 6: Final answer
x = 115,480,367.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.