Finding the Fourth Proportional to 221,615,013.06, 305,823,379.41 and 121,138,984.26
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Solution
The fourth proportional to 221,615,013.06, 305,823,379.41 and 121,138,984.26 is: 167,168,880.09
Step by Step Solution
- Step 1: Write the proportion equation
221,615,013.06 : 305,823,379.41 = 121,138,984.26 : x - Step 2: Convert to fraction form
221,615,013.06/305,823,379.41 = 121,138,984.26/x - Step 3: Cross multiply
221,615,013.06x = 305,823,379.41 × 121,138,984.26 - Step 4: Simplify right side
221,615,013.06x = 37,047,133,544,688,000 - Step 5: Solve for x
x = 37,047,133,544,688,000/221,615,013.06 - Step 6: Final answer
x = 167,168,880.09
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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.