Finding the Fourth Proportional to 201,778,505.76, 278,420,618.59 and 112,450,940.47
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Solution
The fourth proportional to 201,778,505.76, 278,420,618.59 and 112,450,940.47 is: 155,163,506.08
Step by Step Solution
- Step 1: Write the proportion equation
201,778,505.76 : 278,420,618.59 = 112,450,940.47 : x - Step 2: Convert to fraction form
201,778,505.76/278,420,618.59 = 112,450,940.47/x - Step 3: Cross multiply
201,778,505.76x = 278,420,618.59 × 112,450,940.47 - Step 4: Simplify right side
201,778,505.76x = 31,308,660,405,184,052 - Step 5: Solve for x
x = 31,308,660,405,184,052/201,778,505.76 - Step 6: Final answer
x = 155,163,506.08
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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.