Finding the Fourth Proportional to 7,623,131.74, 11,434,844.93 and 1,865,915.75
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Solution
The fourth proportional to 7,623,131.74, 11,434,844.93 and 1,865,915.75 is: 2,798,909.68
Step by Step Solution
- Step 1: Write the proportion equation
7,623,131.74 : 11,434,844.93 = 1,865,915.75 : x - Step 2: Convert to fraction form
7,623,131.74/11,434,844.93 = 1,865,915.75/x - Step 3: Cross multiply
7,623,131.74x = 11,434,844.93 × 1,865,915.75 - Step 4: Simplify right side
7,623,131.74x = 21,336,457,208,631.18 - Step 5: Solve for x
x = 21,336,457,208,631.18/7,623,131.74 - Step 6: Final answer
x = 2,798,909.68
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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.