Finding the Fourth Proportional to 15,242,438.36, 21,034,877.58 and 8,627,026.70
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Solution
The fourth proportional to 15,242,438.36, 21,034,877.58 and 8,627,026.70 is: 11,905,473.80
Step by Step Solution
- Step 1: Write the proportion equation
15,242,438.36 : 21,034,877.58 = 8,627,026.70 : x - Step 2: Convert to fraction form
15,242,438.36/21,034,877.58 = 8,627,026.70/x - Step 3: Cross multiply
15,242,438.36x = 21,034,877.58 × 8,627,026.70 - Step 4: Simplify right side
15,242,438.36x = 181,468,450,408,717 - Step 5: Solve for x
x = 181,468,450,408,717/15,242,438.36 - Step 6: Final answer
x = 11,905,473.80
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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.