Finding the Fourth Proportional to 6,342,028.64, 8,748,339.36 and 4,047,603.20
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Solution
The fourth proportional to 6,342,028.64, 8,748,339.36 and 4,047,603.20 is: 5,583,356.43
Step by Step Solution
- Step 1: Write the proportion equation
6,342,028.64 : 8,748,339.36 = 4,047,603.20 : x - Step 2: Convert to fraction form
6,342,028.64/8,748,339.36 = 4,047,603.20/x - Step 3: Cross multiply
6,342,028.64x = 8,748,339.36 × 4,047,603.20 - Step 4: Simplify right side
6,342,028.64x = 35,409,806,388,221.95 - Step 5: Solve for x
x = 35,409,806,388,221.95/6,342,028.64 - Step 6: Final answer
x = 5,583,356.43
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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.