Finding the Fourth Proportional to 286,156,492,990.16, 394,884,463,160.44 and 155,942,582,497.84
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Solution
The fourth proportional to 286,156,492,990.16, 394,884,463,160.44 and 155,942,582,497.84 is: 215,194,498,402.07
Step by Step Solution
- Step 1: Write the proportion equation
286,156,492,990.16 : 394,884,463,160.44 = 155,942,582,497.84 : x - Step 2: Convert to fraction form
286,156,492,990.16/394,884,463,160.44 = 155,942,582,497.84/x - Step 3: Cross multiply
286,156,492,990.16x = 394,884,463,160.44 × 155,942,582,497.84 - Step 4: Simplify right side
286,156,492,990.16x = 61,579,302,973,512,177,680,384 - Step 5: Solve for x
x = 61,579,302,973,512,177,680,384/286,156,492,990.16 - Step 6: Final answer
x = 215,194,498,402.07
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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.