Finding the Fourth Proportional to 13,028,501.20, 19,533,420.60 and 5,451,566.80
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Solution
The fourth proportional to 13,028,501.20, 19,533,420.60 and 5,451,566.80 is: 8,173,445.71
Step by Step Solution
- Step 1: Write the proportion equation
13,028,501.20 : 19,533,420.60 = 5,451,566.80 : x - Step 2: Convert to fraction form
13,028,501.20/19,533,420.60 = 5,451,566.80/x - Step 3: Cross multiply
13,028,501.20x = 19,533,420.60 × 5,451,566.80 - Step 4: Simplify right side
13,028,501.20x = 106,487,747,233,396.08 - Step 5: Solve for x
x = 106,487,747,233,396.08/13,028,501.20 - Step 6: Final answer
x = 8,173,445.71
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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.