Finding the Fourth Proportional to 216,970,368.24, 299,334,723.12 and 122,862,912.24
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Solution
The fourth proportional to 216,970,368.24, 299,334,723.12 and 122,862,912.24 is: 169,503,034.52
Step by Step Solution
- Step 1: Write the proportion equation
216,970,368.24 : 299,334,723.12 = 122,862,912.24 : x - Step 2: Convert to fraction form
216,970,368.24/299,334,723.12 = 122,862,912.24/x - Step 3: Cross multiply
216,970,368.24x = 299,334,723.12 × 122,862,912.24 - Step 4: Simplify right side
216,970,368.24x = 36,777,135,817,077,256 - Step 5: Solve for x
x = 36,777,135,817,077,256/216,970,368.24 - Step 6: Final answer
x = 169,503,034.52
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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.