Finding the Fourth Proportional to 642,079,756.36, 886,074,598.74 and 348,724,324.36
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Solution
The fourth proportional to 642,079,756.36, 886,074,598.74 and 348,724,324.36 is: 481,242,030.63
Step by Step Solution
- Step 1: Write the proportion equation
642,079,756.36 : 886,074,598.74 = 348,724,324.36 : x - Step 2: Convert to fraction form
642,079,756.36/886,074,598.74 = 348,724,324.36/x - Step 3: Cross multiply
642,079,756.36x = 886,074,598.74 × 348,724,324.36 - Step 4: Simplify right side
642,079,756.36x = 308,995,765,778,164,608 - Step 5: Solve for x
x = 308,995,765,778,164,608/642,079,756.36 - Step 6: Final answer
x = 481,242,030.63
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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.