Finding the Fourth Proportional to 519,492,738.96, 716,891,118.95 and 281,335,988.97
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Solution
The fourth proportional to 519,492,738.96, 716,891,118.95 and 281,335,988.97 is: 388,238,866.12
Step by Step Solution
- Step 1: Write the proportion equation
519,492,738.96 : 716,891,118.95 = 281,335,988.97 : x - Step 2: Convert to fraction form
519,492,738.96/716,891,118.95 = 281,335,988.97/x - Step 3: Cross multiply
519,492,738.96x = 716,891,118.95 × 281,335,988.97 - Step 4: Simplify right side
519,492,738.96x = 201,687,271,928,617,024 - Step 5: Solve for x
x = 201,687,271,928,617,024/519,492,738.96 - Step 6: Final answer
x = 388,238,866.12
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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.