Finding the Fourth Proportional to 216,777,487.09, 299,153,260.92 and 117,658,270.66
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Solution
The fourth proportional to 216,777,487.09, 299,153,260.92 and 117,658,270.66 is: 162,368,591.94
Step by Step Solution
- Step 1: Write the proportion equation
216,777,487.09 : 299,153,260.92 = 117,658,270.66 : x - Step 2: Convert to fraction form
216,777,487.09/299,153,260.92 = 117,658,270.66/x - Step 3: Cross multiply
216,777,487.09x = 299,153,260.92 × 117,658,270.66 - Step 4: Simplify right side
216,777,487.09x = 35,197,855,342,146,960 - Step 5: Solve for x
x = 35,197,855,342,146,960/216,777,487.09 - Step 6: Final answer
x = 162,368,591.94
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1.5x scale
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.