Finding the Fourth Proportional to 202,673,615.76, 279,719,474.04 and 128,340,963.12
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Solution
The fourth proportional to 202,673,615.76, 279,719,474.04 and 128,340,963.12 is: 177,129,453.02
Step by Step Solution
- Step 1: Write the proportion equation
202,673,615.76 : 279,719,474.04 = 128,340,963.12 : x - Step 2: Convert to fraction form
202,673,615.76/279,719,474.04 = 128,340,963.12/x - Step 3: Cross multiply
202,673,615.76x = 279,719,474.04 × 128,340,963.12 - Step 4: Simplify right side
202,673,615.76x = 35,899,466,701,713,440 - Step 5: Solve for x
x = 35,899,466,701,713,440/202,673,615.76 - Step 6: Final answer
x = 177,129,453.02
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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.