Finding the Fourth Proportional to 463,320,963.20, 639,395,415.26 and 272,595,294.02
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Solution
The fourth proportional to 463,320,963.20, 639,395,415.26 and 272,595,294.02 is: 376,188,851.92
Step by Step Solution
- Step 1: Write the proportion equation
463,320,963.20 : 639,395,415.26 = 272,595,294.02 : x - Step 2: Convert to fraction form
463,320,963.20/639,395,415.26 = 272,595,294.02/x - Step 3: Cross multiply
463,320,963.20x = 639,395,415.26 × 272,595,294.02 - Step 4: Simplify right side
463,320,963.20x = 174,296,181,217,839,680 - Step 5: Solve for x
x = 174,296,181,217,839,680/463,320,963.20 - Step 6: Final answer
x = 376,188,851.92
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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.