Finding the Fourth Proportional to 463,320,985.87, 639,395,446.58 and 272,595,316.78
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Solution
The fourth proportional to 463,320,985.87, 639,395,446.58 and 272,595,316.78 is: 376,188,883.35
Step by Step Solution
- Step 1: Write the proportion equation
463,320,985.87 : 639,395,446.58 = 272,595,316.78 : x - Step 2: Convert to fraction form
463,320,985.87/639,395,446.58 = 272,595,316.78/x - Step 3: Cross multiply
463,320,985.87x = 639,395,446.58 × 272,595,316.78 - Step 4: Simplify right side
463,320,985.87x = 174,296,204,308,164,672 - Step 5: Solve for x
x = 174,296,204,308,164,672/463,320,985.87 - Step 6: Final answer
x = 376,188,883.35
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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.