Finding the Fourth Proportional to 18,381,888.80, 25,367,694.72 and 10,122,309.08
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Solution
The fourth proportional to 18,381,888.80, 25,367,694.72 and 10,122,309.08 is: 13,969,165.49
Step by Step Solution
- Step 1: Write the proportion equation
18,381,888.80 : 25,367,694.72 = 10,122,309.08 : x - Step 2: Convert to fraction form
18,381,888.80/25,367,694.72 = 10,122,309.08/x - Step 3: Cross multiply
18,381,888.80x = 25,367,694.72 × 10,122,309.08 - Step 4: Simplify right side
18,381,888.80x = 256,779,646,602,924.06 - Step 5: Solve for x
x = 256,779,646,602,924.06/18,381,888.80 - Step 6: Final answer
x = 13,969,165.49
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1.5x scale
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.