Finding the Fourth Proportional to 450,190,710.69, 621,328,427.99 and 259,414,612.52
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Solution
The fourth proportional to 450,190,710.69, 621,328,427.99 and 259,414,612.52 is: 358,029,762.86
Step by Step Solution
- Step 1: Write the proportion equation
450,190,710.69 : 621,328,427.99 = 259,414,612.52 : x - Step 2: Convert to fraction form
450,190,710.69/621,328,427.99 = 259,414,612.52/x - Step 3: Cross multiply
450,190,710.69x = 621,328,427.99 × 259,414,612.52 - Step 4: Simplify right side
450,190,710.69x = 161,181,673,390,282,848 - Step 5: Solve for x
x = 161,181,673,390,282,848/450,190,710.69 - Step 6: Final answer
x = 358,029,762.86
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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.