Finding the Fourth Proportional to 13,267,980.73, 18,310,567.06 and 7,971,295.68
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Solution
The fourth proportional to 13,267,980.73, 18,310,567.06 and 7,971,295.68 is: 11,000,840.83
Step by Step Solution
- Step 1: Write the proportion equation
13,267,980.73 : 18,310,567.06 = 7,971,295.68 : x - Step 2: Convert to fraction form
13,267,980.73/18,310,567.06 = 7,971,295.68/x - Step 3: Cross multiply
13,267,980.73x = 18,310,567.06 × 7,971,295.68 - Step 4: Simplify right side
13,267,980.73x = 145,958,944,142,775.59 - Step 5: Solve for x
x = 145,958,944,142,775.59/13,267,980.73 - Step 6: Final answer
x = 11,000,840.83
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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.