Finding the Fourth Proportional to 78,178,626.29, 107,841,680.84 and 48,758,882.65
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Solution
The fourth proportional to 78,178,626.29, 107,841,680.84 and 48,758,882.65 is: 67,259,302.32
Step by Step Solution
- Step 1: Write the proportion equation
78,178,626.29 : 107,841,680.84 = 48,758,882.65 : x - Step 2: Convert to fraction form
78,178,626.29/107,841,680.84 = 48,758,882.65/x - Step 3: Cross multiply
78,178,626.29x = 107,841,680.84 × 48,758,882.65 - Step 4: Simplify right side
78,178,626.29x = 5,258,239,860,708,607 - Step 5: Solve for x
x = 5,258,239,860,708,607/78,178,626.29 - Step 6: Final answer
x = 67,259,302.32
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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.