Finding the Fourth Proportional to 13,762,437.43, 18,992,710.86 and 7,567,991.99
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Solution
The fourth proportional to 13,762,437.43, 18,992,710.86 and 7,567,991.99 is: 10,444,129.86
Step by Step Solution
- Step 1: Write the proportion equation
13,762,437.43 : 18,992,710.86 = 7,567,991.99 : x - Step 2: Convert to fraction form
13,762,437.43/18,992,710.86 = 7,567,991.99/x - Step 3: Cross multiply
13,762,437.43x = 18,992,710.86 × 7,567,991.99 - Step 4: Simplify right side
13,762,437.43x = 143,736,683,704,347.78 - Step 5: Solve for x
x = 143,736,683,704,347.78/13,762,437.43 - Step 6: Final answer
x = 10,444,129.86
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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.