Finding the Fourth Proportional to 120,002,672.65, 180,002,696.77 and 29,126,261.65
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Solution
The fourth proportional to 120,002,672.65, 180,002,696.77 and 29,126,261.65 is: 43,689,073.99
Step by Step Solution
- Step 1: Write the proportion equation
120,002,672.65 : 180,002,696.77 = 29,126,261.65 : x - Step 2: Convert to fraction form
120,002,672.65/180,002,696.77 = 29,126,261.65/x - Step 3: Cross multiply
120,002,672.65x = 180,002,696.77 × 29,126,261.65 - Step 4: Simplify right side
120,002,672.65x = 5,242,805,643,828,630 - Step 5: Solve for x
x = 5,242,805,643,828,630/120,002,672.65 - Step 6: Final answer
x = 43,689,073.99
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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.