Finding the Fourth Proportional to 19,492,367.40, 29,207,058.30 and 12,291,013.80
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Solution
The fourth proportional to 19,492,367.40, 29,207,058.30 and 12,291,013.80 is: 18,416,662.75
Step by Step Solution
- Step 1: Write the proportion equation
19,492,367.40 : 29,207,058.30 = 12,291,013.80 : x - Step 2: Convert to fraction form
19,492,367.40/29,207,058.30 = 12,291,013.80/x - Step 3: Cross multiply
19,492,367.40x = 29,207,058.30 × 12,291,013.80 - Step 4: Simplify right side
19,492,367.40x = 358,984,356,622,704.56 - Step 5: Solve for x
x = 358,984,356,622,704.56/19,492,367.40 - Step 6: Final answer
x = 18,416,662.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.