Finding the Fourth Proportional to 519,492,738.41, 716,891,118.20 and 281,335,988.42
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Solution
The fourth proportional to 519,492,738.41, 716,891,118.20 and 281,335,988.42 is: 388,238,865.37
Step by Step Solution
- Step 1: Write the proportion equation
519,492,738.41 : 716,891,118.20 = 281,335,988.42 : x - Step 2: Convert to fraction form
519,492,738.41/716,891,118.20 = 281,335,988.42/x - Step 3: Cross multiply
519,492,738.41x = 716,891,118.20 × 281,335,988.42 - Step 4: Simplify right side
519,492,738.41x = 201,687,271,329,756,640 - Step 5: Solve for x
x = 201,687,271,329,756,640/519,492,738.41 - Step 6: Final answer
x = 388,238,865.37
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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.