Finding the Fourth Proportional to 216,777,869.22, 299,157,909.21 and 122,692,014.66
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Solution
The fourth proportional to 216,777,869.22, 299,157,909.21 and 122,692,014.66 is: 169,317,498.67
Step by Step Solution
- Step 1: Write the proportion equation
216,777,869.22 : 299,157,909.21 = 122,692,014.66 : x - Step 2: Convert to fraction form
216,777,869.22/299,157,909.21 = 122,692,014.66/x - Step 3: Cross multiply
216,777,869.22x = 299,157,909.21 × 122,692,014.66 - Step 4: Simplify right side
216,777,869.22x = 36,704,286,582,448,264 - Step 5: Solve for x
x = 36,704,286,582,448,264/216,777,869.22 - Step 6: Final answer
x = 169,317,498.67
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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.