Finding the Fourth Proportional to 26,919,021.20, 40,378,531.80 and 8,968,125.20
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Solution
The fourth proportional to 26,919,021.20, 40,378,531.80 and 8,968,125.20 is: 13,452,187.80
Step by Step Solution
- Step 1: Write the proportion equation
26,919,021.20 : 40,378,531.80 = 8,968,125.20 : x - Step 2: Convert to fraction form
26,919,021.20/40,378,531.80 = 8,968,125.20/x - Step 3: Cross multiply
26,919,021.20x = 40,378,531.80 × 8,968,125.20 - Step 4: Simplify right side
26,919,021.20x = 362,119,728,574,581.31 - Step 5: Solve for x
x = 362,119,728,574,581.31/26,919,021.20 - Step 6: Final answer
x = 13,452,187.80
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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.