Finding the Fourth Proportional to 157,906,971.20, 236,860,456.80 and 119,643,219.20
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Solution
The fourth proportional to 157,906,971.20, 236,860,456.80 and 119,643,219.20 is: 179,464,828.80
Step by Step Solution
- Step 1: Write the proportion equation
157,906,971.20 : 236,860,456.80 = 119,643,219.20 : x - Step 2: Convert to fraction form
157,906,971.20/236,860,456.80 = 119,643,219.20/x - Step 3: Cross multiply
157,906,971.20x = 236,860,456.80 × 119,643,219.20 - Step 4: Simplify right side
157,906,971.20x = 28,338,747,552,734,532 - Step 5: Solve for x
x = 28,338,747,552,734,532/157,906,971.20 - Step 6: Final answer
x = 179,464,828.80
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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.