Finding the Fourth Proportional to 468,021,214.70, 702,031,822.05 and 331,972,318.70
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Solution
The fourth proportional to 468,021,214.70, 702,031,822.05 and 331,972,318.70 is: 497,958,478.05
Step by Step Solution
- Step 1: Write the proportion equation
468,021,214.70 : 702,031,822.05 = 331,972,318.70 : x - Step 2: Convert to fraction form
468,021,214.70/702,031,822.05 = 331,972,318.70/x - Step 3: Cross multiply
468,021,214.70x = 702,031,822.05 × 331,972,318.70 - Step 4: Simplify right side
468,021,214.70x = 233,055,131,767,124,256 - Step 5: Solve for x
x = 233,055,131,767,124,256/468,021,214.70 - Step 6: Final answer
x = 497,958,478.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.