Finding the Fourth Proportional to 13,411,533,367.96, 18,507,082,128.84 and 7,389,701,784.08
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Solution
The fourth proportional to 13,411,533,367.96, 18,507,082,128.84 and 7,389,701,784.08 is: 10,197,328,975.99
Step by Step Solution
- Step 1: Write the proportion equation
13,411,533,367.96 : 18,507,082,128.84 = 7,389,701,784.08 : x - Step 2: Convert to fraction form
13,411,533,367.96/18,507,082,128.84 = 7,389,701,784.08/x - Step 3: Cross multiply
13,411,533,367.96x = 18,507,082,128.84 × 7,389,701,784.08 - Step 4: Simplify right side
13,411,533,367.96x = 136,761,817,825,604,026,368 - Step 5: Solve for x
x = 136,761,817,825,604,026,368/13,411,533,367.96 - Step 6: Final answer
x = 10,197,328,975.99
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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.