Finding the Fourth Proportional to 642,079,807.02, 886,074,668.66 and 348,724,375.02
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Solution
The fourth proportional to 642,079,807.02, 886,074,668.66 and 348,724,375.02 is: 481,242,100.54
Step by Step Solution
- Step 1: Write the proportion equation
642,079,807.02 : 886,074,668.66 = 348,724,375.02 : x - Step 2: Convert to fraction form
642,079,807.02/886,074,668.66 = 348,724,375.02/x - Step 3: Cross multiply
642,079,807.02x = 886,074,668.66 × 348,724,375.02 - Step 4: Simplify right side
642,079,807.02x = 308,995,835,047,768,448 - Step 5: Solve for x
x = 308,995,835,047,768,448/642,079,807.02 - Step 6: Final answer
x = 481,242,100.54
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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.