Finding the Fourth Proportional to 201,955,480.62, 278,686,552.26 and 117,176,031.78
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Solution
The fourth proportional to 201,955,480.62, 278,686,552.26 and 117,176,031.78 is: 161,695,954.99
Step by Step Solution
- Step 1: Write the proportion equation
201,955,480.62 : 278,686,552.26 = 117,176,031.78 : x - Step 2: Convert to fraction form
201,955,480.62/278,686,552.26 = 117,176,031.78/x - Step 3: Cross multiply
201,955,480.62x = 278,686,552.26 × 117,176,031.78 - Step 4: Simplify right side
201,955,480.62x = 32,655,384,304,276,392 - Step 5: Solve for x
x = 32,655,384,304,276,392/201,955,480.62 - Step 6: Final answer
x = 161,695,954.99
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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.