Finding the Fourth Proportional to 7,718,459.92, 10,651,830.28 and 4,280,496.08
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Solution
The fourth proportional to 7,718,459.92, 10,651,830.28 and 4,280,496.08 is: 5,907,281.79
Step by Step Solution
- Step 1: Write the proportion equation
7,718,459.92 : 10,651,830.28 = 4,280,496.08 : x - Step 2: Convert to fraction form
7,718,459.92/10,651,830.28 = 4,280,496.08/x - Step 3: Cross multiply
7,718,459.92x = 10,651,830.28 × 4,280,496.08 - Step 4: Simplify right side
7,718,459.92x = 45,595,117,758,365.30 - Step 5: Solve for x
x = 45,595,117,758,365.30/7,718,459.92 - Step 6: Final answer
x = 5,907,281.79
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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.