Finding the Fourth Proportional to 468,021,221.70, 702,031,832.55 and 331,972,325.70
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Solution
The fourth proportional to 468,021,221.70, 702,031,832.55 and 331,972,325.70 is: 497,958,488.55
Step by Step Solution
- Step 1: Write the proportion equation
468,021,221.70 : 702,031,832.55 = 331,972,325.70 : x - Step 2: Convert to fraction form
468,021,221.70/702,031,832.55 = 331,972,325.70/x - Step 3: Cross multiply
468,021,221.70x = 702,031,832.55 × 331,972,325.70 - Step 4: Simplify right side
468,021,221.70x = 233,055,140,167,056,448 - Step 5: Solve for x
x = 233,055,140,167,056,448/468,021,221.70 - Step 6: Final answer
x = 497,958,488.55
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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.