Finding the Fourth Proportional to 7,422,051.28, 11,129,567.80 and 2,875,229.68
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Solution
The fourth proportional to 7,422,051.28, 11,129,567.80 and 2,875,229.68 is: 4,311,485.12
Step by Step Solution
- Step 1: Write the proportion equation
7,422,051.28 : 11,129,567.80 = 2,875,229.68 : x - Step 2: Convert to fraction form
7,422,051.28/11,129,567.80 = 2,875,229.68/x - Step 3: Cross multiply
7,422,051.28x = 11,129,567.80 × 2,875,229.68 - Step 4: Simplify right side
7,422,051.28x = 32,000,063,664,132.31 - Step 5: Solve for x
x = 32,000,063,664,132.31/7,422,051.28 - Step 6: Final answer
x = 4,311,485.12
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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.