Finding the Fourth Proportional to 505,408,660.17, 761,562,775.01 and 415,310,695.62
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Solution
The fourth proportional to 505,408,660.17, 761,562,775.01 and 415,310,695.62 is: 625,800,843.50
Step by Step Solution
- Step 1: Write the proportion equation
505,408,660.17 : 761,562,775.01 = 415,310,695.62 : x - Step 2: Convert to fraction form
505,408,660.17/761,562,775.01 = 415,310,695.62/x - Step 3: Cross multiply
505,408,660.17x = 761,562,775.01 × 415,310,695.62 - Step 4: Simplify right side
505,408,660.17x = 316,285,165,845,624,128 - Step 5: Solve for x
x = 316,285,165,845,624,128/505,408,660.17 - Step 6: Final answer
x = 625,800,843.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.