Finding the Fourth Proportional to 20,706,895.40, 31,024,913.70 and 13,125,003.80
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Solution
The fourth proportional to 20,706,895.40, 31,024,913.70 and 13,125,003.80 is: 19,665,048.88
Step by Step Solution
- Step 1: Write the proportion equation
20,706,895.40 : 31,024,913.70 = 13,125,003.80 : x - Step 2: Convert to fraction form
20,706,895.40/31,024,913.70 = 13,125,003.80/x - Step 3: Cross multiply
20,706,895.40x = 31,024,913.70 × 13,125,003.80 - Step 4: Simplify right side
20,706,895.40x = 407,202,110,207,172.06 - Step 5: Solve for x
x = 407,202,110,207,172.06/20,706,895.40 - Step 6: Final answer
x = 19,665,048.88
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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.