Finding the Fourth Proportional to 53,156,731.80, 79,823,571.30 and 29,239,368.60
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Solution
The fourth proportional to 53,156,731.80, 79,823,571.30 and 29,239,368.60 is: 43,907,718.65
Step by Step Solution
- Step 1: Write the proportion equation
53,156,731.80 : 79,823,571.30 = 29,239,368.60 : x - Step 2: Convert to fraction form
53,156,731.80/79,823,571.30 = 29,239,368.60/x - Step 3: Cross multiply
53,156,731.80x = 79,823,571.30 × 29,239,368.60 - Step 4: Simplify right side
53,156,731.80x = 2,333,990,824,209,081 - Step 5: Solve for x
x = 2,333,990,824,209,081/53,156,731.80 - Step 6: Final answer
x = 43,907,718.65
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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.