Finding the Fourth Proportional to 13,550,005.31, 18,699,025.30 and 7,355,048.02
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Solution
The fourth proportional to 13,550,005.31, 18,699,025.30 and 7,355,048.02 is: 10,149,976.02
Step by Step Solution
- Step 1: Write the proportion equation
13,550,005.31 : 18,699,025.30 = 7,355,048.02 : x - Step 2: Convert to fraction form
13,550,005.31/18,699,025.30 = 7,355,048.02/x - Step 3: Cross multiply
13,550,005.31x = 18,699,025.30 × 7,355,048.02 - Step 4: Simplify right side
13,550,005.31x = 137,532,228,943,559.72 - Step 5: Solve for x
x = 137,532,228,943,559.72/13,550,005.31 - Step 6: Final answer
x = 10,149,976.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.