Finding the Fourth Proportional to 199,234,163.90, 275,031,308.62 and 128,704,163.60
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Solution
The fourth proportional to 199,234,163.90, 275,031,308.62 and 128,704,163.60 is: 177,668,698.21
Step by Step Solution
- Step 1: Write the proportion equation
199,234,163.90 : 275,031,308.62 = 128,704,163.60 : x - Step 2: Convert to fraction form
199,234,163.90/275,031,308.62 = 128,704,163.60/x - Step 3: Cross multiply
199,234,163.90x = 275,031,308.62 × 128,704,163.60 - Step 4: Simplify right side
199,234,163.90x = 35,397,674,539,750,568 - Step 5: Solve for x
x = 35,397,674,539,750,568/199,234,163.90 - Step 6: Final answer
x = 177,668,698.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.