Finding the Fourth Proportional to 13,698,313.88, 18,903,625.98 and 7,897,067.96
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Solution
The fourth proportional to 13,698,313.88, 18,903,625.98 and 7,897,067.96 is: 10,897,926.59
Step by Step Solution
- Step 1: Write the proportion equation
13,698,313.88 : 18,903,625.98 = 7,897,067.96 : x - Step 2: Convert to fraction form
13,698,313.88/18,903,625.98 = 7,897,067.96/x - Step 3: Cross multiply
13,698,313.88x = 18,903,625.98 × 7,897,067.96 - Step 4: Simplify right side
13,698,313.88x = 149,283,219,054,481.59 - Step 5: Solve for x
x = 149,283,219,054,481.59/13,698,313.88 - Step 6: Final answer
x = 10,897,926.59
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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.