Finding the Fourth Proportional to 65,828,495.07, 90,904,387.19 and 49,279,889.70
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Solution
The fourth proportional to 65,828,495.07, 90,904,387.19 and 49,279,889.70 is: 68,051,960.92
Step by Step Solution
- Step 1: Write the proportion equation
65,828,495.07 : 90,904,387.19 = 49,279,889.70 : x - Step 2: Convert to fraction form
65,828,495.07/90,904,387.19 = 49,279,889.70/x - Step 3: Cross multiply
65,828,495.07x = 90,904,387.19 × 49,279,889.70 - Step 4: Simplify right side
65,828,495.07x = 4,479,758,173,722,894 - Step 5: Solve for x
x = 4,479,758,173,722,894/65,828,495.07 - Step 6: Final answer
x = 68,051,960.92
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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.