Finding the Fourth Proportional to 10,366,623.68, 15,549,935.52 and 7,138,119.60
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Solution
The fourth proportional to 10,366,623.68, 15,549,935.52 and 7,138,119.60 is: 10,707,179.40
Step by Step Solution
- Step 1: Write the proportion equation
10,366,623.68 : 15,549,935.52 = 7,138,119.60 : x - Step 2: Convert to fraction form
10,366,623.68/15,549,935.52 = 7,138,119.60/x - Step 3: Cross multiply
10,366,623.68x = 15,549,935.52 × 7,138,119.60 - Step 4: Simplify right side
10,366,623.68x = 110,997,299,514,048.19 - Step 5: Solve for x
x = 110,997,299,514,048.19/10,366,623.68 - Step 6: Final answer
x = 10,707,179.40
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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.