Finding the Fourth Proportional to 46,778,643.99, 70,177,979.61 and 13,991,784.75
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Solution
The fourth proportional to 46,778,643.99, 70,177,979.61 and 13,991,784.75 is: 20,990,672.26
Step by Step Solution
- Step 1: Write the proportion equation
46,778,643.99 : 70,177,979.61 = 13,991,784.75 : x - Step 2: Convert to fraction form
46,778,643.99/70,177,979.61 = 13,991,784.75/x - Step 3: Cross multiply
46,778,643.99x = 70,177,979.61 × 13,991,784.75 - Step 4: Simplify right side
46,778,643.99x = 981,915,184,893,009 - Step 5: Solve for x
x = 981,915,184,893,009/46,778,643.99 - Step 6: Final answer
x = 20,990,672.26
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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.