Finding the Fourth Proportional to 66,432,710.20, 99,649,065.30 and 49,214,021.80
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Solution
The fourth proportional to 66,432,710.20, 99,649,065.30 and 49,214,021.80 is: 73,821,032.70
Step by Step Solution
- Step 1: Write the proportion equation
66,432,710.20 : 99,649,065.30 = 49,214,021.80 : x - Step 2: Convert to fraction form
66,432,710.20/99,649,065.30 = 49,214,021.80/x - Step 3: Cross multiply
66,432,710.20x = 99,649,065.30 × 49,214,021.80 - Step 4: Simplify right side
66,432,710.20x = 4,904,131,272,023,823 - Step 5: Solve for x
x = 4,904,131,272,023,823/66,432,710.20 - Step 6: Final answer
x = 73,821,032.70
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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.