Finding the Fourth Proportional to 7,718,079.04, 10,663,459.60 and 6,568,671.81
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Solution
The fourth proportional to 7,718,079.04, 10,663,459.60 and 6,568,671.81 is: 9,075,414.49
Step by Step Solution
- Step 1: Write the proportion equation
7,718,079.04 : 10,663,459.60 = 6,568,671.81 : x - Step 2: Convert to fraction form
7,718,079.04/10,663,459.60 = 6,568,671.81/x - Step 3: Cross multiply
7,718,079.04x = 10,663,459.60 × 6,568,671.81 - Step 4: Simplify right side
7,718,079.04x = 70,044,766,417,503.49 - Step 5: Solve for x
x = 70,044,766,417,503.49/7,718,079.04 - Step 6: Final answer
x = 9,075,414.49
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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.