Finding the Fourth Proportional to 81,941,402.40, 122,912,103.60 and 56,113,369.80
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Solution
The fourth proportional to 81,941,402.40, 122,912,103.60 and 56,113,369.80 is: 84,170,054.70
Step by Step Solution
- Step 1: Write the proportion equation
81,941,402.40 : 122,912,103.60 = 56,113,369.80 : x - Step 2: Convert to fraction form
81,941,402.40/122,912,103.60 = 56,113,369.80/x - Step 3: Cross multiply
81,941,402.40x = 122,912,103.60 × 56,113,369.80 - Step 4: Simplify right side
81,941,402.40x = 6,897,012,322,202,711 - Step 5: Solve for x
x = 6,897,012,322,202,711/81,941,402.40 - Step 6: Final answer
x = 84,170,054.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.