Finding the Fourth Proportional to 64,701,201.81, 89,299,191.38 and 38,238,475.08
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Solution
The fourth proportional to 64,701,201.81, 89,299,191.38 and 38,238,475.08 is: 52,775,911.55
Step by Step Solution
- Step 1: Write the proportion equation
64,701,201.81 : 89,299,191.38 = 38,238,475.08 : x - Step 2: Convert to fraction form
64,701,201.81/89,299,191.38 = 38,238,475.08/x - Step 3: Cross multiply
64,701,201.81x = 89,299,191.38 × 38,238,475.08 - Step 4: Simplify right side
64,701,201.81x = 3,414,664,904,057,088.50 - Step 5: Solve for x
x = 3,414,664,904,057,088.50/64,701,201.81 - Step 6: Final answer
x = 52,775,911.55
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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.