Finding the Fourth Proportional to 13,028,281.20, 19,533,090.60 and 5,451,346.80
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Solution
The fourth proportional to 13,028,281.20, 19,533,090.60 and 5,451,346.80 is: 8,173,115.80
Step by Step Solution
- Step 1: Write the proportion equation
13,028,281.20 : 19,533,090.60 = 5,451,346.80 : x - Step 2: Convert to fraction form
13,028,281.20/19,533,090.60 = 5,451,346.80/x - Step 3: Cross multiply
13,028,281.20x = 19,533,090.60 × 5,451,346.80 - Step 4: Simplify right side
13,028,281.20x = 106,481,650,936,420.08 - Step 5: Solve for x
x = 106,481,650,936,420.08/13,028,281.20 - Step 6: Final answer
x = 8,173,115.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.