Finding the Fourth Proportional to 518,194,961.70, 777,292,442.55 and 168,440,353.58
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Solution
The fourth proportional to 518,194,961.70, 777,292,442.55 and 168,440,353.58 is: 252,660,530.36
Step by Step Solution
- Step 1: Write the proportion equation
518,194,961.70 : 777,292,442.55 = 168,440,353.58 : x - Step 2: Convert to fraction form
518,194,961.70/777,292,442.55 = 168,440,353.58/x - Step 3: Cross multiply
518,194,961.70x = 777,292,442.55 × 168,440,353.58 - Step 4: Simplify right side
518,194,961.70x = 130,927,413,854,297,360 - Step 5: Solve for x
x = 130,927,413,854,297,360/518,194,961.70 - Step 6: Final answer
x = 252,660,530.36
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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.