Finding the Fourth Proportional to 450,190,720.07, 621,328,440.92 and 259,414,621.90
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Solution
The fourth proportional to 450,190,720.07, 621,328,440.92 and 259,414,621.90 is: 358,029,775.80
Step by Step Solution
- Step 1: Write the proportion equation
450,190,720.07 : 621,328,440.92 = 259,414,621.90 : x - Step 2: Convert to fraction form
450,190,720.07/621,328,440.92 = 259,414,621.90/x - Step 3: Cross multiply
450,190,720.07x = 621,328,440.92 × 259,414,621.90 - Step 4: Simplify right side
450,190,720.07x = 161,181,682,574,127,904 - Step 5: Solve for x
x = 161,181,682,574,127,904/450,190,720.07 - Step 6: Final answer
x = 358,029,775.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.