Finding the Fourth Proportional to 21,783,135.60, 32,681,701.80 and 14,602,777.20
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Solution
The fourth proportional to 21,783,135.60, 32,681,701.80 and 14,602,777.20 is: 21,908,857.32
Step by Step Solution
- Step 1: Write the proportion equation
21,783,135.60 : 32,681,701.80 = 14,602,777.20 : x - Step 2: Convert to fraction form
21,783,135.60/32,681,701.80 = 14,602,777.20/x - Step 3: Cross multiply
21,783,135.60x = 32,681,701.80 × 14,602,777.20 - Step 4: Simplify right side
21,783,135.60x = 477,243,609,902,238.94 - Step 5: Solve for x
x = 477,243,609,902,238.94/21,783,135.60 - Step 6: Final answer
x = 21,908,857.32
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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.