Finding the Fourth Proportional to 21,401,795.40, 32,102,693.10 and 19,764,169.80
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Solution
The fourth proportional to 21,401,795.40, 32,102,693.10 and 19,764,169.80 is: 29,646,254.70
Step by Step Solution
- Step 1: Write the proportion equation
21,401,795.40 : 32,102,693.10 = 19,764,169.80 : x - Step 2: Convert to fraction form
21,401,795.40/32,102,693.10 = 19,764,169.80/x - Step 3: Cross multiply
21,401,795.40x = 32,102,693.10 × 19,764,169.80 - Step 4: Simplify right side
21,401,795.40x = 634,483,077,465,688.38 - Step 5: Solve for x
x = 634,483,077,465,688.38/21,401,795.40 - Step 6: Final answer
x = 29,646,254.70
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1.5x scale
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.