Finding the Fourth Proportional to 13,339,079.11, 18,407,073.98 and 7,459,197.98
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Solution
The fourth proportional to 13,339,079.11, 18,407,073.98 and 7,459,197.98 is: 10,293,214.99
Step by Step Solution
- Step 1: Write the proportion equation
13,339,079.11 : 18,407,073.98 = 7,459,197.98 : x - Step 2: Convert to fraction form
13,339,079.11/18,407,073.98 = 7,459,197.98/x - Step 3: Cross multiply
13,339,079.11x = 18,407,073.98 × 7,459,197.98 - Step 4: Simplify right side
13,339,079.11x = 137,302,009,012,030.59 - Step 5: Solve for x
x = 137,302,009,012,030.59/13,339,079.11 - Step 6: Final answer
x = 10,293,214.99
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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.