Finding the Fourth Proportional to 13,339,192.68, 18,408,297.60 and 7,459,486.92
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Solution
The fourth proportional to 13,339,192.68, 18,408,297.60 and 7,459,486.92 is: 10,294,210.34
Step by Step Solution
- Step 1: Write the proportion equation
13,339,192.68 : 18,408,297.60 = 7,459,486.92 : x - Step 2: Convert to fraction form
13,339,192.68/18,408,297.60 = 7,459,486.92/x - Step 3: Cross multiply
13,339,192.68x = 18,408,297.60 × 7,459,486.92 - Step 4: Simplify right side
13,339,192.68x = 137,316,455,166,667.41 - Step 5: Solve for x
x = 137,316,455,166,667.41/13,339,192.68 - Step 6: Final answer
x = 10,294,210.34
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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.