Finding the Fourth Proportional to 13,251,996.80, 19,867,497.60 and 7,268,364.80
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Solution
The fourth proportional to 13,251,996.80, 19,867,497.60 and 7,268,364.80 is: 10,896,789.55
Step by Step Solution
- Step 1: Write the proportion equation
13,251,996.80 : 19,867,497.60 = 7,268,364.80 : x - Step 2: Convert to fraction form
13,251,996.80/19,867,497.60 = 7,268,364.80/x - Step 3: Cross multiply
13,251,996.80x = 19,867,497.60 × 7,268,364.80 - Step 4: Simplify right side
13,251,996.80x = 144,404,220,219,924.50 - Step 5: Solve for x
x = 144,404,220,219,924.50/13,251,996.80 - Step 6: Final answer
x = 10,896,789.55
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1.5x scale
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.