Finding the Fourth Proportional to 312,021,201.70, 468,031,802.55 and 158,966,193.70
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Solution
The fourth proportional to 312,021,201.70, 468,031,802.55 and 158,966,193.70 is: 238,449,290.55
Step by Step Solution
- Step 1: Write the proportion equation
312,021,201.70 : 468,031,802.55 = 158,966,193.70 : x - Step 2: Convert to fraction form
312,021,201.70/468,031,802.55 = 158,966,193.70/x - Step 3: Cross multiply
312,021,201.70x = 468,031,802.55 × 158,966,193.70 - Step 4: Simplify right side
312,021,201.70x = 74,401,234,181,923,456 - Step 5: Solve for x
x = 74,401,234,181,923,456/312,021,201.70 - Step 6: Final answer
x = 238,449,290.55
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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.