Finding the Fourth Proportional to 13,270,119,644.69, 18,312,764,409.32 and 7,166,471,615.99
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Solution
The fourth proportional to 13,270,119,644.69, 18,312,764,409.32 and 7,166,471,615.99 is: 9,889,730,451.84
Step by Step Solution
- Step 1: Write the proportion equation
13,270,119,644.69 : 18,312,764,409.32 = 7,166,471,615.99 : x - Step 2: Convert to fraction form
13,270,119,644.69/18,312,764,409.32 = 7,166,471,615.99/x - Step 3: Cross multiply
13,270,119,644.69x = 18,312,764,409.32 × 7,166,471,615.99 - Step 4: Simplify right side
13,270,119,644.69x = 131,237,906,349,703,659,520 - Step 5: Solve for x
x = 131,237,906,349,703,659,520/13,270,119,644.69 - Step 6: Final answer
x = 9,889,730,451.84
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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.