Finding the Fourth Proportional to 71,668,621.04, 106,979,723.33 and 61,498,833.20
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Solution
The fourth proportional to 71,668,621.04, 106,979,723.33 and 61,498,833.20 is: 91,799,284.90
Step by Step Solution
- Step 1: Write the proportion equation
71,668,621.04 : 106,979,723.33 = 61,498,833.20 : x - Step 2: Convert to fraction form
71,668,621.04/106,979,723.33 = 61,498,833.20/x - Step 3: Cross multiply
71,668,621.04x = 106,979,723.33 × 61,498,833.20 - Step 4: Simplify right side
71,668,621.04x = 6,579,128,161,014,361 - Step 5: Solve for x
x = 6,579,128,161,014,361/71,668,621.04 - Step 6: Final answer
x = 91,799,284.90
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.