Finding the Fourth Proportional to 141,952,840.66, 195,895,191.21 and 78,373,302.79
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Solution
The fourth proportional to 141,952,840.66, 195,895,191.21 and 78,373,302.79 is: 108,155,307.53
Step by Step Solution
- Step 1: Write the proportion equation
141,952,840.66 : 195,895,191.21 = 78,373,302.79 : x - Step 2: Convert to fraction form
141,952,840.66/195,895,191.21 = 78,373,302.79/x - Step 3: Cross multiply
141,952,840.66x = 195,895,191.21 × 78,373,302.79 - Step 4: Simplify right side
141,952,840.66x = 15,352,953,135,806,278 - Step 5: Solve for x
x = 15,352,953,135,806,278/141,952,840.66 - Step 6: Final answer
x = 108,155,307.53
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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.