Finding the Fourth Proportional to 13,312,786,451.26, 18,372,222,801.95 and 7,372,338,953.26
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Solution
The fourth proportional to 13,312,786,451.26, 18,372,222,801.95 and 7,372,338,953.26 is: 10,174,147,562.32
Step by Step Solution
- Step 1: Write the proportion equation
13,312,786,451.26 : 18,372,222,801.95 = 7,372,338,953.26 : x - Step 2: Convert to fraction form
13,312,786,451.26/18,372,222,801.95 = 7,372,338,953.26/x - Step 3: Cross multiply
13,312,786,451.26x = 18,372,222,801.95 × 7,372,338,953.26 - Step 4: Simplify right side
13,312,786,451.26x = 135,446,253,820,704,768,000 - Step 5: Solve for x
x = 135,446,253,820,704,768,000/13,312,786,451.26 - Step 6: Final answer
x = 10,174,147,562.32
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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.