Finding the Fourth Proportional to 7,347,816.30, 11,021,724.45 and 5,458,248.30
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Solution
The fourth proportional to 7,347,816.30, 11,021,724.45 and 5,458,248.30 is: 8,187,372.45
Step by Step Solution
- Step 1: Write the proportion equation
7,347,816.30 : 11,021,724.45 = 5,458,248.30 : x - Step 2: Convert to fraction form
7,347,816.30/11,021,724.45 = 5,458,248.30/x - Step 3: Cross multiply
7,347,816.30x = 11,021,724.45 × 5,458,248.30 - Step 4: Simplify right side
7,347,816.30x = 60,159,308,742,280.93 - Step 5: Solve for x
x = 60,159,308,742,280.93/7,347,816.30 - Step 6: Final answer
x = 8,187,372.45
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1.5x scale
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.