Finding the Fourth Proportional to 664,243,516.09, 995,979,798.44 and 314,486,647.86
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Solution
The fourth proportional to 664,243,516.09, 995,979,798.44 and 314,486,647.86 is: 471,547,468.00
Step by Step Solution
- Step 1: Write the proportion equation
664,243,516.09 : 995,979,798.44 = 314,486,647.86 : x - Step 2: Convert to fraction form
664,243,516.09/995,979,798.44 = 314,486,647.86/x - Step 3: Cross multiply
664,243,516.09x = 995,979,798.44 × 314,486,647.86 - Step 4: Simplify right side
664,243,516.09x = 313,222,348,147,674,112 - Step 5: Solve for x
x = 313,222,348,147,674,112/664,243,516.09 - Step 6: Final answer
x = 471,547,468.00
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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.