Finding the Fourth Proportional to 15,316,596.93, 21,136,907.09 and 8,347,276.13
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Solution
The fourth proportional to 15,316,596.93, 21,136,907.09 and 8,347,276.13 is: 11,519,242.88
Step by Step Solution
- Step 1: Write the proportion equation
15,316,596.93 : 21,136,907.09 = 8,347,276.13 : x - Step 2: Convert to fraction form
15,316,596.93/21,136,907.09 = 8,347,276.13/x - Step 3: Cross multiply
15,316,596.93x = 21,136,907.09 × 8,347,276.13 - Step 4: Simplify right side
15,316,596.93x = 176,435,600,088,095.25 - Step 5: Solve for x
x = 176,435,600,088,095.25/15,316,596.93 - Step 6: Final answer
x = 11,519,242.88
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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.