Finding the Fourth Proportional to 13,533,257.79, 18,676,885.57 and 7,731,914.99
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Solution
The fourth proportional to 13,533,257.79, 18,676,885.57 and 7,731,914.99 is: 10,670,608.19
Step by Step Solution
- Step 1: Write the proportion equation
13,533,257.79 : 18,676,885.57 = 7,731,914.99 : x - Step 2: Convert to fraction form
13,533,257.79/18,676,885.57 = 7,731,914.99/x - Step 3: Cross multiply
13,533,257.79x = 18,676,885.57 × 7,731,914.99 - Step 4: Simplify right side
13,533,257.79x = 144,408,091,392,483.47 - Step 5: Solve for x
x = 144,408,091,392,483.47/13,533,257.79 - Step 6: Final answer
x = 10,670,608.19
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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.