Finding the Fourth Proportional to 19,542,430.40, 29,313,645.60 and 8,748,273.20
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Solution
The fourth proportional to 19,542,430.40, 29,313,645.60 and 8,748,273.20 is: 13,122,409.80
Step by Step Solution
- Step 1: Write the proportion equation
19,542,430.40 : 29,313,645.60 = 8,748,273.20 : x - Step 2: Convert to fraction form
19,542,430.40/29,313,645.60 = 8,748,273.20/x - Step 3: Cross multiply
19,542,430.40x = 29,313,645.60 × 8,748,273.20 - Step 4: Simplify right side
19,542,430.40x = 256,443,780,196,777.91 - Step 5: Solve for x
x = 256,443,780,196,777.91/19,542,430.40 - Step 6: Final answer
x = 13,122,409.80
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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.