Finding the Fourth Proportional to 5,047,278.32, 6,965,641.68 and 2,871,913.20
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Solution
The fourth proportional to 5,047,278.32, 6,965,641.68 and 2,871,913.20 is: 3,963,466.45
Step by Step Solution
- Step 1: Write the proportion equation
5,047,278.32 : 6,965,641.68 = 2,871,913.20 : x - Step 2: Convert to fraction form
5,047,278.32/6,965,641.68 = 2,871,913.20/x - Step 3: Cross multiply
5,047,278.32x = 6,965,641.68 × 2,871,913.20 - Step 4: Simplify right side
5,047,278.32x = 20,004,718,287,262.18 - Step 5: Solve for x
x = 20,004,718,287,262.18/5,047,278.32 - Step 6: Final answer
x = 3,963,466.45
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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.