Finding the Fourth Proportional to 21,362,811.60, 32,044,217.40 and 15,652,117.20
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Solution
The fourth proportional to 21,362,811.60, 32,044,217.40 and 15,652,117.20 is: 23,478,175.80
Step by Step Solution
- Step 1: Write the proportion equation
21,362,811.60 : 32,044,217.40 = 15,652,117.20 : x - Step 2: Convert to fraction form
21,362,811.60/32,044,217.40 = 15,652,117.20/x - Step 3: Cross multiply
21,362,811.60x = 32,044,217.40 × 15,652,117.20 - Step 4: Simplify right side
21,362,811.60x = 501,559,846,327,079.25 - Step 5: Solve for x
x = 501,559,846,327,079.25/21,362,811.60 - Step 6: Final answer
x = 23,478,175.80
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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.