Finding the Fourth Proportional to 21,491,768.40, 32,237,652.60 and 19,849,477.20
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Solution
The fourth proportional to 21,491,768.40, 32,237,652.60 and 19,849,477.20 is: 29,774,215.80
Step by Step Solution
- Step 1: Write the proportion equation
21,491,768.40 : 32,237,652.60 = 19,849,477.20 : x - Step 2: Convert to fraction form
21,491,768.40/32,237,652.60 = 19,849,477.20/x - Step 3: Cross multiply
21,491,768.40x = 32,237,652.60 × 19,849,477.20 - Step 4: Simplify right side
21,491,768.40x = 639,900,550,265,220.75 - Step 5: Solve for x
x = 639,900,550,265,220.75/21,491,768.40 - Step 6: Final answer
x = 29,774,215.80
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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.