Finding the Fourth Proportional to 79,929,812.65, 110,305,816.11 and 48,984,005.65
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Solution
The fourth proportional to 79,929,812.65, 110,305,816.11 and 48,984,005.65 is: 67,599,566.92
Step by Step Solution
- Step 1: Write the proportion equation
79,929,812.65 : 110,305,816.11 = 48,984,005.65 : x - Step 2: Convert to fraction form
79,929,812.65/110,305,816.11 = 48,984,005.65/x - Step 3: Cross multiply
79,929,812.65x = 110,305,816.11 × 48,984,005.65 - Step 4: Simplify right side
79,929,812.65x = 5,403,220,718,763,652 - Step 5: Solve for x
x = 5,403,220,718,763,652/79,929,812.65 - Step 6: Final answer
x = 67,599,566.92
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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.