Finding the Fourth Proportional to 19,851,712.68, 27,392,142.06 and 12,408,493.80
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Solution
The fourth proportional to 19,851,712.68, 27,392,142.06 and 12,408,493.80 is: 17,121,707.85
Step by Step Solution
- Step 1: Write the proportion equation
19,851,712.68 : 27,392,142.06 = 12,408,493.80 : x - Step 2: Convert to fraction form
19,851,712.68/27,392,142.06 = 12,408,493.80/x - Step 3: Cross multiply
19,851,712.68x = 27,392,142.06 × 12,408,493.80 - Step 4: Simplify right side
19,851,712.68x = 339,895,224,920,229.25 - Step 5: Solve for x
x = 339,895,224,920,229.25/19,851,712.68 - Step 6: Final answer
x = 17,121,707.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.