Finding the Fourth Proportional to 518,194,949.33, 777,292,423.99 and 168,440,341.20
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Solution
The fourth proportional to 518,194,949.33, 777,292,423.99 and 168,440,341.20 is: 252,660,511.80
Step by Step Solution
- Step 1: Write the proportion equation
518,194,949.33 : 777,292,423.99 = 168,440,341.20 : x - Step 2: Convert to fraction form
518,194,949.33/777,292,423.99 = 168,440,341.20/x - Step 3: Cross multiply
518,194,949.33x = 777,292,423.99 × 168,440,341.20 - Step 4: Simplify right side
518,194,949.33x = 130,927,401,109,050,656 - Step 5: Solve for x
x = 130,927,401,109,050,656/518,194,949.33 - Step 6: Final answer
x = 252,660,511.80
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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.