Finding the Fourth Proportional to 13,216,554.36, 18,239,999.09 and 7,711,702.62
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Solution
The fourth proportional to 13,216,554.36, 18,239,999.09 and 7,711,702.62 is: 10,642,823.00
Step by Step Solution
- Step 1: Write the proportion equation
13,216,554.36 : 18,239,999.09 = 7,711,702.62 : x - Step 2: Convert to fraction form
13,216,554.36/18,239,999.09 = 7,711,702.62/x - Step 3: Cross multiply
13,216,554.36x = 18,239,999.09 × 7,711,702.62 - Step 4: Simplify right side
13,216,554.36x = 140,661,448,732,592.11 - Step 5: Solve for x
x = 140,661,448,732,592.11/13,216,554.36 - Step 6: Final answer
x = 10,642,823.00
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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.